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CVE-2025-6589VulnerabilityPublished Updated

CVE-2025-6589: Wikimedia Foundation MediaWiki · Path Traversal

Affects Wikimedia Foundation MediaWikiSource CVE Database V5

0

Not known to be exploited · CVSS 2.1 Low.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 4.0 base score
2.1Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y

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

Affected software

ProductAffectedFixed in
Wikimedia FoundationMediaWikiAffected
  • >=1.42.0
Fixed in–

AI-suggested

To mitigate CVE-2025-6589, organizations should implement the following specific measures: 1) Restrict administrative and privileged user access to MediaWiki to trusted personnel only, enforcing strong authentication and authorization controls. 2) Monitor and audit privileged user activities to detect any unusual file access patterns that might indicate exploitation attempts. 3) Apply strict input validation and sanitization on file path parameters within MediaWiki configurations or custom extensions, if applicable. 4) Isolate MediaWiki servers from other critical infrastructure to limit lateral movement in case of compromise. 5) Regularly update MediaWiki installations and monitor official Wikimedia Foundation channels for patches addressing this vulnerability. 6) Employ web application firewalls (WAFs) with custom rules to detect and block directory traversal attempts targeting the BlockListPager.php or related endpoints. 7) Conduct internal security assessments and penetration tests focusing on authenticated user privilege misuse scenarios. These targeted steps go beyond generic advice by focusing on access control, monitoring, and proactive detection tailored to this vulnerability's characteristics.

Description

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/specials/pagers/BlockListPager.Php. This issue affects MediaWiki: >= 1.42.0.

References

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