Cross-site Scripting (XSS)

Affecting mediawiki package, versions <1:1.35.2-1

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NVD Description

Note: Versions mentioned in the description apply to the upstream mediawiki package. See Remediation section below for Debian:unstable relevant versions.

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On Special:NewFiles, all the mediastatistics-header-* messages are output in HTML unescaped, leading to XSS.

Remediation

Upgrade Debian:unstable mediawiki to version 1:1.35.2-1 or higher.

References

CVSS Score

6.1
medium severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    Required
  • Scope
    Changed
  • Confidentiality
    Low
  • Integrity
    Low
  • Availability
    None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVE
CVE-2021-30154
CWE
CWE-79
Snyk ID
SNYK-DEBIANUNSTABLE-MEDIAWIKI-1243878
Disclosed
06 Apr, 2021
Published
07 Apr, 2021