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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.

PUBLISHED Reserved 2025-09-29 | Published 2026-01-30 | Updated 2026-01-30 | Assigner wikimedia-foundation




HIGH: 8.8CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N

Problem types

CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

Product status

Default status
unaffected

1.44
affected

1.43
affected

Credits

Matmarex finder

Bartosz remediation developer

References

phabricator.wikimedia.org/T396248

gerrit.wikimedia.org/...19f3298a8740e158d130492bf3d2897784d7

phabricator.wikimedia.org/T364910

gerrit.wikimedia.org/...03ab1d3ec8c1719cbb5460a887e4d0c2cc6d

cve.org (CVE-2025-11175)

nvd.nist.gov (CVE-2025-11175)

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