Arbitrary HTML Injection in TabberNeue MediaWiki Extension by StarCitizenTools
CVE-2025-53093

8.6HIGH

Key Information:

Vendor: Starcitizentools
Status: Mediawiki-extensions-tabberneue
Vendor: CVE Published:; 27 June 2025

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What is CVE-2025-53093?

The TabberNeue extension for MediaWiki contains a vulnerability that allows users to inject arbitrary HTML code into the DOM. This weakness arises from improper handling of attributes in the <tabber> tag. Due to this flaw, attackers can exploit the system by inserting malicious scripts or content, potentially leading to unauthorized access or data manipulation. The issue has been addressed in version 3.1.1, which includes a patch. It is crucial for users of the affected versions to upgrade to the latest release to mitigate this risk.

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