Security readout for executives and security teams
This is an old cross-site scripting issue in MediaWiki’s LiquidThreads extension. A remote attacker could place script or HTML in a thread subject, potentially affecting users who view the vulnerable history page. The sources do not provide CVSS, confirmed exploitation, or broad product impact beyond the named MediaWiki/LiquidThreads versions. Exposure is likely limited to MediaWiki deployments using the LiquidThreads extension in the affected version ranges. Public or semi-public wikis with untrusted users able to create or edit thread subjects are the main concern. Treat this as a targeted remediation item for legacy MediaWiki estates, not a current emergency based on the provided evidence. Prioritize public wikis and any instance where untrusted users can post LiquidThreads subjects. Mitigation focus: Upgrade affected MediaWiki branches to 1.19.8, 1.20.7, 1.21.2, or later.; Confirm LiquidThreads is updated or no longer exposed on production wikis.; If immediate patching is blocked, check current MediaWiki guidance for compensating controls..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2013-4308 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- mediawiki-cve20134308-xss(86891)CVE reference · vdb-entry, x_refsource_XF
- https://bugzilla.wikimedia.org/show_bug.cgi?id=53320CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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