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Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - Wikibase Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - Wikibase Extension: 1.45, 1.44, 1.43, 1.39.

PUBLISHED Reserved 2026-01-08 | Published 2026-01-08 | Updated 2026-01-09 | Assigner wikimedia-foundation




LOW: 2.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Problem types

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

Product status

Default status
unaffected

1.45
affected

1.44
affected

1.43
affected

1.39
affected

Credits

SomeRandomDeveloper finder

SomeRandomDeveloper remediation developer

References

phabricator.wikimedia.org/T409737 exploit

phabricator.wikimedia.org/T409737

gerrit.wikimedia.org/...074b2ad022b6efe6ab3dd8c8ec0f86c6c466

cve.org (CVE-2026-22710)

nvd.nist.gov (CVE-2026-22710)

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