CVE-2025-6590 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction Active

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

No data.

No data.

No data.

No data.

Advisories

Source	ID	Title
Debian DLA	DLA-4249-1	mediawiki security update
Debian DSA	DSA-5957-1	mediawiki security update

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://phabricator.wikimedia.org/T392746

History

Mon, 02 Feb 2026 23:15:00 +0000

Type	Values Removed	Values Added
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.
Title		Complete content leak of private wikis due to PasswordReset Wikitext injection in error message
Weaknesses		CWE-200
References		https://phabricator.wikimedia.org/T392746
Metrics		cvssV4_0 `{'score': 4.6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published: 2026-02-02T23:03:07.979Z

Updated: 2026-02-02T23:03:07.979Z

Reserved: 2025-06-24T22:27:41.836Z

Link: CVE-2025-6590

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-02-02T23:16:01.503

Modified: 2026-02-02T23:16:01.503

Link: CVE-2025-6590

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-200

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