Arbitrary HTML Insertion Vulnerability in Citizen MediaWiki Skin
CVE-2025-49576

6.5MEDIUM

Key Information:

Vendor

Starcitizentools

Status
Mediawiki-skins-citizen
Vendor
CVE Published:
12 June 2025

What is CVE-2025-49576?

The Citizen MediaWiki skin features a vulnerability where system messages are incorporated into raw HTML without proper sanitization. This flaw enables users with edit permissions to insert arbitrary HTML into the Document Object Model (DOM). As a result, this could lead to potential exploitation where unauthorized scripts might be executed. This issue was addressed in version 3.3.1, underscoring the importance of keeping media skins updated for optimal security.

Affected Version(s)

mediawiki-skins-Citizen >= a0296afaedbe1a277337a2d8f1da83cb3a79b9ab, < 93c36ac778397e0e7c46cf7adb1e5d848265f1bd < a0296afaedbe1a277337a2d8f1da83cb3a79b9ab, 93c36ac778397e0e7c46cf7adb1e5d848265f1bd

mediawiki-skins-Citizen >= 2.31.0, < 3.3.1 < 2.31.0, 3.3.1

References

https://github.com/StarCitizenTools/mediawiki-skins-Citiz...
x_refsource_CONFIRM
https://github.com/StarCitizenTools/mediawiki-skins-Citiz...
x_refsource_MISC
https://github.com/StarCitizenTools/mediawiki-skins-Citiz...
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-49576 : Arbitrary HTML Insertion Vulnerability in Citizen MediaWiki Skin