Citizen CVE-2025-49576

| EUVD-2025-18206 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2025-06-12 [email protected] GHSA-86xf-2mgp-gv3g
XSS Citizen
6.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

5
Analysis Generated
Mar 14, 2026 - 21:20 vuln.today
EUVD ID Assigned
Mar 14, 2026 - 21:20 euvd
EUVD-2025-18206
Patch released
Mar 14, 2026 - 21:20 nvd
Patch available
PoC Detected
Aug 22, 2025 - 18:56 vuln.today
Public exploit code
CVE Published
Jun 12, 2025 - 19:15 nvd
MEDIUM 6.5

DescriptionNVD

Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. The citizen-search-noresults-title and citizen-search-noresults-desc system messages are inserted into raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM. This vulnerability is fixed in 3.3.1.

Analysis

Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. The citizen-search-noresults-title and citizen-search-noresults-desc system messages are inserted into raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM. This vulnerability is fixed in 3.3.1.

Technical ContextAI

Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.

RemediationAI

A vendor patch is available — apply it immediately. Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.

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CVE-2025-49576 vulnerability details – vuln.today
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