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Information Exposure Affecting typo3/cms-core package, versions >=11.0.0, <11.1.1 >=10.0.0, <10.4.14 <9.5.25

0.0
medium

Snyk CVSS

    Attack Complexity High

    Threat Intelligence

    EPSS 0.17% (54th percentile)
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NVD
7.5 high

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  • Snyk ID SNYK-PHP-TYPO3CMSCORE-1086570
  • published 18 Mar 2021
  • disclosed 17 Mar 2021
  • credit Oliver Hader
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Introduced: 17 Mar 2021

CVE-2021-21339 Open this link in a new tab
CWE-200 Open this link in a new tab

How to fix?

Upgrade typo3/cms-core to version 11.1.1, 10.4.14, 9.5.25 or higher.

Overview

typo3/cms-core is a free open source enterprise content management system.

Affected versions of this package are vulnerable to Information Exposure. User session identifiers are stored in cleartext - without processing of additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack.