PT-2025-42688 · Wikimedia Foundation · Mediawiki +1

Dcausse + 1 · Published 2025-10-18 · Updated 2025-10-18 · CVE-2025-62666

Positive Technologies · (AI Summary)

CVSS v4.0

6.9

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Name of the Vulnerable Software and Affected Versions Wikimedia Foundation Mediawiki - CirrusSearch Extension versions prior to 1.43

Description A flaw exists in the Wikimedia Foundation Mediawiki - CirrusSearch Extension related to the allocation of resources without limits or throttling, which can lead to a denial-of-service (DoS) attack via HTTP.

Recommendations Update to Mediawiki - CirrusSearch Extension version 1.43 or later.

Fix

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2025-62666

Affected Products

Cirrussearch Extension

Mediawiki

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2025-62666 · Security Note
• https://twitter.com/CVEnew/status/1979415798079721811 · Twitter Post
• https://phabricator.wikimedia.org/T401220 · Note
• https://gerrit.wikimedia.org/r/q/I3e8d819868c0491b18368af8e543180e747023c2 · Note
• https://t.me/cveNotify/139315 · Telegram Post