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Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/htmlform/fields/HTMLUserTextField.Php. This issue affects MediaWiki: from * through 1.39.12, 1.42.76 1.43.1, 1.44.0.

PUBLISHED Reserved 2025-06-24 | Published 2026-02-02 | Updated 2026-02-03 | Assigner wikimedia-foundation




MEDIUM: 4.6CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

Problem types

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Product status

Default status
unaffected

* (semver)
affected

References

phabricator.wikimedia.org/T392746

cve.org (CVE-2025-6590)

nvd.nist.gov (CVE-2025-6590)

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