CVE-2025-6927: Wikimedia Foundation MediaWiki · Path Traversal
Affects Wikimedia Foundation MediaWikiSource CVE Database V5
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
- 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:NExploitation evidence
Disclosed: evidence found.
CVE published 2 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| Wikimedia FoundationMediaWiki | Affected
| Fixed in
|
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.