CVE-2025-53491

Severity CVSS v4.0:

Pending analysis

Type:

CWE-79 Cross-Site Scripting (XSS)

Publication date:

07/07/2025

Last modified:

15/04/2026

Description

Improper Neutralization of Input During Web Page Generation (XSS or &#39;Cross-site Scripting&#39;) vulnerability in Wikimedia Foundation Mediawiki - FlaggedRevs Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - FlaggedRevs Extension: from 1.43.X before 1.43.2.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.40 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x

5.40

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/FlaggedRevs/+/1165929
https://phabricator.wikimedia.org/T394397