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.

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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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