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Medium severity6.1NVD Advisory· Published Apr 6, 2021· Updated Jun 17, 2026

CVE-2021-30157

CVE-2021-30157

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

8
  • MediaWiki/MediaWikidescription
  • osv-coords
    pkg:bitnami/mediawiki
    Range: < 1.31.12
  • MediaWiki/Mediawikillm-fuzzy2 versions
    <1.31.12, 1.32.x through 1.35.x before 1.35.2+ 1 more
    • (no CPE)range: <1.31.12, 1.32.x through 1.35.x before 1.35.2
    • cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*range: <1.31.12
  • Wikimedia Foundation/Mediawikillm-fuzzy
    Range: <1.31.12, 1.32.x through 1.35.x before 1.35.2
  • Debian/linux
    cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • Fedoraproject/Fedora2 versions
    cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
    • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

5

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0

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