TitleIcon Extension up to 1.39.12/1.42.6/1.43.1 on MediaWiki titleicon_unicode Parser cross site scripting

Summaryinfo

A vulnerability was found in TitleIcon Extension up to 1.39.12/1.42.6/1.43.1 on MediaWiki. It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the component titleicon_unicode Parser. Performing a manipulation results in cross site scripting. This vulnerability is cataloged as CVE-2025-7363. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in TitleIcon Extension up to 1.39.12/1.42.6/1.43.1 on MediaWiki. This affects an unknown code block of the component titleicon_unicode Parser. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

The TitleIcon extension for MediaWiki is vulnerable to stored XSS through the #titleicon_unicode parser function. User input passed to this function is wrapped in an HtmlArmor object without sanitization and rendered directly into the page header, allowing attackers to inject arbitrary JavaScript. This issue affects Mediawiki - TitleIcon extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

It is possible to read the advisory at phabricator.wikimedia.org. This vulnerability is uniquely identified as CVE-2025-7363 since 07/08/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 1.39.13, 1.42.7 or 1.43.2 eliminates this vulnerability.

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Productinfo

Name

• TitleIcon Extension

Version

• 1.39.0
• 1.39.1
• 1.39.2
• 1.39.3
• 1.39.4
• 1.39.5
• 1.39.6
• 1.39.7
• 1.39.8
• 1.39.9
• 1.39.10
• 1.39.11
• 1.39.12
• 1.42.0
• 1.42.1
• 1.42.2
• 1.42.3
• 1.42.4
• 1.42.5
• 1.42.6
• 1.43.0
• 1.43.1

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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