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Test Results

ladunjexa/nextjs14-devoverflow

Vulnerabilities

 8 via 9 paths

Dependencies

 245

Source

 GitHub

Commit

 00823bb5

Find, fix and prevent vulnerabilities in your code.

Test and protect my applications
Severity
  • 1
  • 3
  • 4
Status
  • 8
  • 0
  • 0

critical severity
new

Improper Authorization

  • Vulnerable module: next
  • Introduced through: next@14.1.1

Detailed paths

  • Introduced through: nextjs14-devoverflow@ladunjexa/nextjs14-devoverflow#00823bb5cb120854811abb7fd4696c583136505a › next@14.1.1
    Remediation: Upgrade to next@14.2.25.

Overview

next is a react framework.

Affected versions of this package are vulnerable to Improper Authorization due to the improper handling of the x-middleware-subrequest header. An attacker can bypass authorization checks by sending crafted requests containing this specific header.

Workaround

This can be mitigated by preventing external user requests which contain the x-middleware-subrequest header from reaching your Next.js application.

Remediation

Upgrade next to version 12.3.5, 13.5.9, 14.2.25, 15.2.3, 15.3.0-canary.12 or higher.

References

Improper Authorization vulnerability report

high severity

Acceptance of Extraneous Untrusted Data With Trusted Data

  • Vulnerable module: next
  • Introduced through: next@14.1.1

Detailed paths

  • Introduced through: nextjs14-devoverflow@ladunjexa/nextjs14-devoverflow#00823bb5cb120854811abb7fd4696c583136505a › next@14.1.1
    Remediation: Upgrade to next@14.2.10.

Overview

next is a react framework.

Affected versions of this package are vulnerable to Acceptance of Extraneous Untrusted Data With Trusted Data by sending a crafted HTTP request, which allows the attacker to poison the cache of a non-dynamic server-side rendered route in the page router. This will coerce the request to cache a route that is meant to not be cached and send a Cache-Control: s-maxage=1, a stale-while-revalidate header, which some upstream CDNs may cache as well.

Note:

This is only vulnerable if:

  1. The user is using pages router

  2. The user is using non-dynamic server-side rendered routes.

Users are not affected if:

  1. They are using the app router

  2. The deployments are on Vercel

Remediation

Upgrade next to version 13.5.7, 14.2.10 or higher.

References

Acceptance of Extraneous Untrusted Data With Trusted Data vulnerability report

high severity

Missing Authorization

  • Vulnerable module: next
  • Introduced through: next@14.1.1

Detailed paths

  • Introduced through: nextjs14-devoverflow@ladunjexa/nextjs14-devoverflow#00823bb5cb120854811abb7fd4696c583136505a › next@14.1.1
    Remediation: Upgrade to next@14.2.15.

Overview

next is a react framework.

Affected versions of this package are vulnerable to Missing Authorization when using pathname-based checks in middleware for authorization decisions. If i18n configuration is not configured, an attacker can get unintended access to pages one level under the application's root directory.

e.g. https://example.com/foo is accessible. https://example.com/ and https://example.com/foo/bar are not.

Note:

Only self-hosted applications are vulnerable. The vulnerability has been fixed by Vercel on the server side.

Remediation

Upgrade next to version 13.5.8, 14.2.15, 15.0.0-canary.177 or higher.

References

Missing Authorization vulnerability report

high severity

Uncontrolled Recursion

  • Vulnerable module: next
  • Introduced through: next@14.1.1

Detailed paths

  • Introduced through: nextjs14-devoverflow@ladunjexa/nextjs14-devoverflow#00823bb5cb120854811abb7fd4696c583136505a › next@14.1.1
    Remediation: Upgrade to next@14.2.7.

Overview

next is a react framework.

Affected versions of this package are vulnerable to Uncontrolled Recursion through the image optimization feature. An attacker can cause excessive CPU consumption by exploiting this vulnerability.

Workaround

Ensure that the next.config.js file has either images.unoptimized, images.loader or images.loaderFile assigned.

Remediation

Upgrade next to version 14.2.7, 15.0.0-canary.109 or higher.

References

Uncontrolled Recursion vulnerability report

medium severity

Allocation of Resources Without Limits or Throttling

  • Vulnerable module: next
  • Introduced through: next@14.1.1

Detailed paths

  • Introduced through: nextjs14-devoverflow@ladunjexa/nextjs14-devoverflow#00823bb5cb120854811abb7fd4696c583136505a › next@14.1.1
    Remediation: Upgrade to next@14.2.21.

Overview

next is a react framework.

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the Server Actions process. An attacker can cause the server to hang by constructing requests that leave Server-Actions requests pending until the hosting provider terminates the function execution.

Note:

This is only exploitable if there are no protections against long-running Server Action invocations.

Remediation

Upgrade next to version 13.5.8, 14.2.21, 15.1.2 or higher.

References

Allocation of Resources Without Limits or Throttling vulnerability report

medium severity

Cross-site Scripting (XSS)

  • Vulnerable module: cookie
  • Introduced through: @clerk/nextjs@4.31.8

Detailed paths

  • Introduced through: nextjs14-devoverflow@ladunjexa/nextjs14-devoverflow#00823bb5cb120854811abb7fd4696c583136505a › @clerk/nextjs@4.31.8 › @clerk/backend@0.38.15 › cookie@0.5.0
    Remediation: Upgrade to @clerk/nextjs@5.7.2.
  • Introduced through: nextjs14-devoverflow@ladunjexa/nextjs14-devoverflow#00823bb5cb120854811abb7fd4696c583136505a › @clerk/nextjs@4.31.8 › @clerk/clerk-sdk-node@4.13.23 › @clerk/backend@0.38.15 › cookie@0.5.0
    Remediation: Upgrade to @clerk/nextjs@5.0.0.

Overview

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the cookie name, path, or domain, which can be used to set unexpected values to other cookie fields.

Workaround

Users who are not able to upgrade to the fixed version should avoid passing untrusted or arbitrary values for the cookie fields and ensure they are set by the application instead of user input.

Details

A cross-site scripting attack occurs when the attacker tricks a legitimate web-based application or site to accept a request as originating from a trusted source.

This is done by escaping the context of the web application; the web application then delivers that data to its users along with other trusted dynamic content, without validating it. The browser unknowingly executes malicious script on the client side (through client-side languages; usually JavaScript or HTML) in order to perform actions that are otherwise typically blocked by the browser’s Same Origin Policy.

Injecting malicious code is the most prevalent manner by which XSS is exploited; for this reason, escaping characters in order to prevent this manipulation is the top method for securing code against this vulnerability.

Escaping means that the application is coded to mark key characters, and particularly key characters included in user input, to prevent those characters from being interpreted in a dangerous context. For example, in HTML, < can be coded as &lt; and > can be coded as &gt; in order to be interpreted and displayed as themselves in text, while within the code itself, they are used for HTML tags. If malicious content is injected into an application that escapes special characters and that malicious content uses < and > as HTML tags, those characters are nonetheless not interpreted as HTML tags by the browser if they’ve been correctly escaped in the application code and in this way the attempted attack is diverted.

The most prominent use of XSS is to steal cookies (source: OWASP HttpOnly) and hijack user sessions, but XSS exploits have been used to expose sensitive information, enable access to privileged services and functionality and deliver malware.

Types of attacks

There are a few methods by which XSS can be manipulated:

Type Origin Description
Stored Server The malicious code is inserted in the application (usually as a link) by the attacker. The code is activated every time a user clicks the link.
Reflected Server The attacker delivers a malicious link externally from the vulnerable web site application to a user. When clicked, malicious code is sent to the vulnerable web site, which reflects the attack back to the user’s browser.
DOM-based Client The attacker forces the user’s browser to render a malicious page. The data in the page itself delivers the cross-site scripting data.
Mutated The attacker injects code that appears safe, but is then rewritten and modified by the browser, while parsing the markup. An example is rebalancing unclosed quotation marks or even adding quotation marks to unquoted parameters.

Affected environments

The following environments are susceptible to an XSS attack:

  • Web servers
  • Application servers
  • Web application environments

How to prevent

This section describes the top best practices designed to specifically protect your code:

  • Sanitize data input in an HTTP request before reflecting it back, ensuring all data is validated, filtered or escaped before echoing anything back to the user, such as the values of query parameters during searches.
  • Convert special characters such as ?, &, /, <, > and spaces to their respective HTML or URL encoded equivalents.
  • Give users the option to disable client-side scripts.
  • Redirect invalid requests.
  • Detect simultaneous logins, including those from two separate IP addresses, and invalidate those sessions.
  • Use and enforce a Content Security Policy (source: Wikipedia) to disable any features that might be manipulated for an XSS attack.
  • Read the documentation for any of the libraries referenced in your code to understand which elements allow for embedded HTML.

Remediation

Upgrade cookie to version 0.7.0 or higher.

References

Cross-site Scripting (XSS) vulnerability report

medium severity

Cross-site Scripting (XSS)

  • Vulnerable module: tinymce
  • Introduced through: @tinymce/tinymce-react@4.3.2

Detailed paths

  • Introduced through: nextjs14-devoverflow@ladunjexa/nextjs14-devoverflow#00823bb5cb120854811abb7fd4696c583136505a › @tinymce/tinymce-react@4.3.2 › tinymce@6.8.5
    Remediation: Upgrade to @tinymce/tinymce-react@5.0.0.

Overview

tinymce is a web-based JavaScript HTML WYSIWYG editor control.

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via iframe elements inserted into the editor. Attacks are limited by same-origin browser protections, but downloading files is still possible.

Workaround

This vulnerability can be avoided by applying stricter content security policies with frame-src or object-src configuration.

In version 6.8.0 and above sandbox_iframes can be set to true to directly solve this issue.

Details

A cross-site scripting attack occurs when the attacker tricks a legitimate web-based application or site to accept a request as originating from a trusted source.

This is done by escaping the context of the web application; the web application then delivers that data to its users along with other trusted dynamic content, without validating it. The browser unknowingly executes malicious script on the client side (through client-side languages; usually JavaScript or HTML) in order to perform actions that are otherwise typically blocked by the browser’s Same Origin Policy.

Injecting malicious code is the most prevalent manner by which XSS is exploited; for this reason, escaping characters in order to prevent this manipulation is the top method for securing code against this vulnerability.

Escaping means that the application is coded to mark key characters, and particularly key characters included in user input, to prevent those characters from being interpreted in a dangerous context. For example, in HTML, < can be coded as &lt; and > can be coded as &gt; in order to be interpreted and displayed as themselves in text, while within the code itself, they are used for HTML tags. If malicious content is injected into an application that escapes special characters and that malicious content uses < and > as HTML tags, those characters are nonetheless not interpreted as HTML tags by the browser if they’ve been correctly escaped in the application code and in this way the attempted attack is diverted.

The most prominent use of XSS is to steal cookies (source: OWASP HttpOnly) and hijack user sessions, but XSS exploits have been used to expose sensitive information, enable access to privileged services and functionality and deliver malware.

Types of attacks

There are a few methods by which XSS can be manipulated:

Type Origin Description
Stored Server The malicious code is inserted in the application (usually as a link) by the attacker. The code is activated every time a user clicks the link.
Reflected Server The attacker delivers a malicious link externally from the vulnerable web site application to a user. When clicked, malicious code is sent to the vulnerable web site, which reflects the attack back to the user’s browser.
DOM-based Client The attacker forces the user’s browser to render a malicious page. The data in the page itself delivers the cross-site scripting data.
Mutated The attacker injects code that appears safe, but is then rewritten and modified by the browser, while parsing the markup. An example is rebalancing unclosed quotation marks or even adding quotation marks to unquoted parameters.

Affected environments

The following environments are susceptible to an XSS attack:

  • Web servers
  • Application servers
  • Web application environments

How to prevent

This section describes the top best practices designed to specifically protect your code:

  • Sanitize data input in an HTTP request before reflecting it back, ensuring all data is validated, filtered or escaped before echoing anything back to the user, such as the values of query parameters during searches.
  • Convert special characters such as ?, &, /, <, > and spaces to their respective HTML or URL encoded equivalents.
  • Give users the option to disable client-side scripts.
  • Redirect invalid requests.
  • Detect simultaneous logins, including those from two separate IP addresses, and invalidate those sessions.
  • Use and enforce a Content Security Policy (source: Wikipedia) to disable any features that might be manipulated for an XSS attack.
  • Read the documentation for any of the libraries referenced in your code to understand which elements allow for embedded HTML.

Remediation

Upgrade tinymce to version 7.0.0 or higher.

References

Cross-site Scripting (XSS) vulnerability report

medium severity

Cross-site Scripting (XSS)

  • Vulnerable module: tinymce
  • Introduced through: @tinymce/tinymce-react@4.3.2

Detailed paths

  • Introduced through: nextjs14-devoverflow@ladunjexa/nextjs14-devoverflow#00823bb5cb120854811abb7fd4696c583136505a › @tinymce/tinymce-react@4.3.2 › tinymce@6.8.5
    Remediation: Upgrade to @tinymce/tinymce-react@5.0.0.

Overview

tinymce is a web-based JavaScript HTML WYSIWYG editor control.

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) when loading SVG files via object or embed elements.

Workaround

This vulnerability can be avoided by simulating the functionality of the convert_unsafe_embeds option that was added to address it, by applying a custom NodeFilter with the editor.parser.addNodeFilter or editor.serializer.addNodeFilter API.

In version 6.8.0 and above convert_unsafe_embeds can be set to true to directly solve this issue.

Details

A cross-site scripting attack occurs when the attacker tricks a legitimate web-based application or site to accept a request as originating from a trusted source.

This is done by escaping the context of the web application; the web application then delivers that data to its users along with other trusted dynamic content, without validating it. The browser unknowingly executes malicious script on the client side (through client-side languages; usually JavaScript or HTML) in order to perform actions that are otherwise typically blocked by the browser’s Same Origin Policy.

Injecting malicious code is the most prevalent manner by which XSS is exploited; for this reason, escaping characters in order to prevent this manipulation is the top method for securing code against this vulnerability.

Escaping means that the application is coded to mark key characters, and particularly key characters included in user input, to prevent those characters from being interpreted in a dangerous context. For example, in HTML, < can be coded as &lt; and > can be coded as &gt; in order to be interpreted and displayed as themselves in text, while within the code itself, they are used for HTML tags. If malicious content is injected into an application that escapes special characters and that malicious content uses < and > as HTML tags, those characters are nonetheless not interpreted as HTML tags by the browser if they’ve been correctly escaped in the application code and in this way the attempted attack is diverted.

The most prominent use of XSS is to steal cookies (source: OWASP HttpOnly) and hijack user sessions, but XSS exploits have been used to expose sensitive information, enable access to privileged services and functionality and deliver malware.

Types of attacks

There are a few methods by which XSS can be manipulated:

Type Origin Description
Stored Server The malicious code is inserted in the application (usually as a link) by the attacker. The code is activated every time a user clicks the link.
Reflected Server The attacker delivers a malicious link externally from the vulnerable web site application to a user. When clicked, malicious code is sent to the vulnerable web site, which reflects the attack back to the user’s browser.
DOM-based Client The attacker forces the user’s browser to render a malicious page. The data in the page itself delivers the cross-site scripting data.
Mutated The attacker injects code that appears safe, but is then rewritten and modified by the browser, while parsing the markup. An example is rebalancing unclosed quotation marks or even adding quotation marks to unquoted parameters.

Affected environments

The following environments are susceptible to an XSS attack:

  • Web servers
  • Application servers
  • Web application environments

How to prevent

This section describes the top best practices designed to specifically protect your code:

  • Sanitize data input in an HTTP request before reflecting it back, ensuring all data is validated, filtered or escaped before echoing anything back to the user, such as the values of query parameters during searches.
  • Convert special characters such as ?, &, /, <, > and spaces to their respective HTML or URL encoded equivalents.
  • Give users the option to disable client-side scripts.
  • Redirect invalid requests.
  • Detect simultaneous logins, including those from two separate IP addresses, and invalidate those sessions.
  • Use and enforce a Content Security Policy (source: Wikipedia) to disable any features that might be manipulated for an XSS attack.
  • Read the documentation for any of the libraries referenced in your code to understand which elements allow for embedded HTML.

Remediation

Upgrade tinymce to version 7.0.0 or higher.

References

Cross-site Scripting (XSS) vulnerability report