CVE-2025-53370

Citizen stored XSS vulnerability through short descriptions

Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. From versions 1.9.4 to before 3.4.0, short descriptions set via the ShortDescription extension are inserted as raw HTML by the Citizen skin, allowing any user to insert arbitrary HTML into the DOM by editing a page. This issue has been patched in version 3.4.0.

Affected

StarCitizenTools · mediawiki-skins-Citizen

CVSS v3.1 NVD

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 GITHUB

8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

EPSS

0.38% chance of exploitation in the next 30 days, 30th percentile

Published

2025-07-03

Updated

2025-07-07

Proof-of-concept exploits (1)

• StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-prmv-7r8c-794g

Security advisories

• advisories/GHSA-prmv-7r8c-794g
• StarCitizenTools/mediawiki-skins-Citizen/commit/c85a40bddc8651fff66df83a72debddcb34f0521

References

• CVE Record
• NVD entry