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Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - TwoColConflict Extension allows Stored XSS.This issue affects Mediawiki - TwoColConflict Extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

PUBLISHED Reserved 2025-06-30 | Published 2025-07-02 | Updated 2025-07-10 | Assigner wikimedia-foundation

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Product status

Default status
unaffected

1.39.x (semver) before 1.39.13
affected

1.42.x (semver) before 1.42.7
affected

1.43.x (semver) before 1.43.2
affected

Credits

SomeRandomDeveloper finder

References

phabricator.wikimedia.org/T394938

gerrit.wikimedia.org/.../extensions/TwoColConflict/+/1150011

cve.org (CVE-2025-53494)

nvd.nist.gov (CVE-2025-53494)

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