CVE-2025-6590

Publication date 2 February 2026

Last updated 4 February 2026

Ubuntu priority

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
mediawiki	25.10 questing	Needs evaluation
	25.04 plucky	Ignored end of life, was needs-triage
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Needs evaluation
	22.04 LTS jammy	Needs evaluation
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation

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References

MITRE
NVD
Launchpad
Debian

Other references

https://www.cve.org/CVERecord?id=CVE-2025-6590
https://lists.wikimedia.org/hyperkitty/list/[email protected]/thread/TT45WDZ7MDTXXBEFLBMLAJI532O2PN2U/
https://phabricator.wikimedia.org/T392746
https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1165112 (master)
https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1165084 (REL1_39)