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Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - ExternalGuidance allows Stored XSS.This issue affects Mediawiki - ExternalGuidance: from master before 1.39.

PUBLISHED Reserved 2025-10-20 | Published 2025-10-20 | Updated 2025-10-20 | Assigner wikimedia-foundation




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Problem types

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

Product status

Default status
unaffected

master (semver) before 1.39
affected

Credits

SomeRandomDeveloper finder

References

gerrit.wikimedia.org/...3c2766982f6633f47ed35720d4d9f51da71d

phabricator.wikimedia.org/T399662

cve.org (CVE-2025-62698)

nvd.nist.gov (CVE-2025-62698)

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