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VulnerabilityPublished Updated

CVE-2025-6927: Wikimedia Foundation MediaWiki · Path Traversal

Affects Wikimedia Foundation MediaWikiSource CVE Database V5

0

Not known to be exploited · CVSS 2.3 Low : upgrade to 1.39.13 when convenient.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 4.0 base score
2.3Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.39.13
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Wikimedia Foundation MediaWiki to 1.39.13.

Affected software

ProductAffectedFixed in
Wikimedia FoundationMediaWikiAffected
  • ≥ >= 1.42.0, < 1.39.13, 1.42.7 1.43.2, 1.44.0
Fixed in
  • 1.39.13

AI-suggested

2) Review and restrict user permissions on MediaWiki installations to minimize the risk of exploitation, especially limiting access to untrusted users or anonymous interactions. 3) Implement web application firewalls (WAFs) with rules designed to detect and block directory traversal attempts targeting the affected endpoints (BlockListPager.Php and ApiQueryBlocks.Php). 4) Conduct regular security audits and code reviews of custom MediaWiki extensions or configurations to ensure no additional path traversal weaknesses exist. 5) Employ strict input validation and sanitization on any user-supplied parameters related to file paths or API queries. 6) Limit exposure of MediaWiki instances to trusted networks or VPNs where feasible to reduce attack surface. 7) Monitor logs for unusual access patterns or attempts to access unauthorized files. These steps go beyond generic advice by focusing on proactive monitoring, access control, and layered defenses tailored to the specific vulnerable components.

Description

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/specials/pagers/BlockListPager.Php, includes/api/ApiQueryBlocks.Php. This issue affects MediaWiki: from >= 1.42.0 before 1.39.13, 1.42.7 1.43.2, 1.44.0.

References

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