Medium severity · published Oct 18, 2025
CVE-2025-62666
DoS vector through the cirrusbuilddoc query API
6.9
CVSS
0.4%
EPSS
No
On KEV
Description
Allocation of Resources Without Limits or Throttling vulnerability in The Wikimedia Foundation Mediawiki - CirrusSearch Extension allows HTTP DoS.This issue affects Mediawiki - CirrusSearch Extension: from master before 1.43.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MC
Mediawiki - CirrusSearch Extension · The Wikimedia Foundation
master before 1.43 · source: vendor
Affected product
MC
Mediawiki - CirrusSearch Extension
The Wikimedia Foundation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-62666
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-62666
gerrit.wikimedia.org
https://gerrit.wikimedia.org/r/q/I3e8d819868c0491b18368af8e543180e747023c2
phabricator.wikimedia.org
https://phabricator.wikimedia.org/T401220
More from Mediawiki - CirrusSearch Extension
5.5
CVE-2026-96873
Reflected XSS in CirrusSearch debug explain output