CVE-2024-47536: starcitizentools/citizen-skin vulnerable to stored, self-XSS in the "real name" field

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-09-30 · updated 2026-06-17
Weakness: CWE-79

Description

Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. A user with the editmyprivateinfo right or who can otherwise change their name can XSS themselves by setting their "real name" to an XSS payload. This vulnerability is fixed in 2.31.0.

Affected products

StarCitizenTools mediawiki-skins-Citizen: before 2.31.0 — fixed in 2.31.0

How to fix

Upgrade to a fixed version: StarCitizenTools mediawiki-skins-Citizen 2.31.0. Check the vendor advisory for mitigations.

References

https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/d45c3d69f30863f622f16eb40dd41d3ca943454a/includes/Components/CitizenComponentUserInfo.php#L137
https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/717d16af35b10dab04d434aefddbf991fc8c168c
https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/86da3e07718c8d8da6f4310386fef85599606f9b
https://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-62r2-gcxr-426x

Get alerted when CVE-2024-47536 or the next vulnerability affects your stack