Critical severity · published Feb 3, 2026
CVE-2025-67484
Vulnerability in Wikimedia Foundation MediaWiki
9.8
CVSS
0.4%
EPSS
No
On KEV
Description
Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Api/ApiFormatXml.Php.
This issue affects MediaWiki: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Mediawiki · Mediawiki
1.39.0 before 1.39.16; 1.43.0 before 1.43.6; 1.44.0 before 1.44.3; 1.45.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-67484
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-67484
Permissions Required
https://phabricator.wikimedia.org/T401995
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