Vulnerability · Published Jan 30, 2026 · Assigned by wikimedia-foundation

CVE-2025-11175DiscussionTools should use better regex

High 8.8

In plain English

A high-severity expression language injection in Mediawiki - DiscussionTools Extension from The Wikimedia Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.8High

Exploit odds (30 days)0.5%top 58.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') vulnerability in The Wikimedia Foundation Mediawiki - DiscussionTools Extension allows Regular Expression Exponential Blowup.This issue affects Mediawiki - DiscussionTools Extension: 1.44, 1.43.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:13	mediawiki	1:1.43.6+dfsg-1~deb13u1	DEBIAN-CVE-2025-11175
Debian:14	mediawiki	1:1.43.5+dfsg-1	DEBIAN-CVE-2025-11175
Ubuntu:25.10	mediawiki	no fix listed	UBUNTU-CVE-2025-11175
Ubuntu:26.04:LTS	mediawiki	no fix listed	UBUNTU-CVE-2025-11175
Ubuntu:26.10	mediawiki	no fix listed	UBUNTU-CVE-2025-11175

Affected products (as reported)

Vendor	Product	Versions
The Wikimedia Foundation	Mediawiki - DiscussionTools Extension	1.441.43

Weakness: CWE-917 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N

In plain English

Official description

Affected packages & fixed versions

Affected products (as reported)

References