CVE-2025-21612

Cross-site Scripting in TabberTransclude in Extension:TabberNeue

Description

TabberNeue is a MediaWiki extension that allows the wiki to create tabs. Prior to 2.7.2, TabberTransclude.php doesn't escape the user-supplied page name when outputting, so an XSS payload as the page name can be used here. This vulnerability is fixed in 2.7.2.

References

Link	Tags
https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/security/advisories/GHSA-4x6x-8rm8-c37j
https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/d8c3db4e5935476e496d979fb01f775d3d3282e6
https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/f229cab099c69006e25d4bad3579954e481dc566

Frequently Asked Questions

What is the severity of CVE-2025-21612?: CVE-2025-21612 has been scored as a high severity vulnerability.
How to fix CVE-2025-21612?: To fix CVE-2025-21612, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21612 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-21612 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21612?: CVE-2025-21612 affects StarCitizenTools mediawiki-extensions-TabberNeue.

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Description

Category

CWE-79 – Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

Frequently Asked Questions