An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On ChangesList special pages such as Special:RecentChanges and Special:Watchlist, some of the rcfilters-filter-* label messages are output in HTML unescaped, leading to XSS.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On     ChangesList special pages such as Special:RecentChanges and Special:Watchlist, some of the rcfilters-     filter-* label messages are output in HTML unescaped, leading to XSS. (CVE-2021-30157)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote host is affected by the vulnerability described in GLSA-202107-40 (MediaWiki: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in MediaWiki. Please       review the CVE identifiers referenced below for details.
  Impact :

    Please review the referenced CVE identifiers for details.
  Workaround :

    There is no known workaround at this time.

Multiple security issues were found in MediaWiki, a website engine for collaborative work, which could result in incomplete page/blocking protection, denial of service or cross-site scripting.

ID	Name	Product	Family	Severity
246144	Linux Distros Unpatched Vulnerability : CVE-2021-30157	Nessus	Misc.	medium
156986	GLSA-202107-40 : MediaWiki: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
148441	Debian DSA-4889-1 : mediawiki - security update	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2021-30157

medium

Tenable Plugins

medium

high

medium