PT-2025-27831 · Unknown+1 · Shortdescription Extension+1

Somemwdev · Published 2025-07-03 · Updated 2025-07-03 · CVE-2025-53370

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Citizen MediaWiki skin versions 1.9.4 through 3.4.0

Description: The Citizen MediaWiki skin has an issue where short descriptions set via the ShortDescription extension are inserted as raw HTML, allowing any user to insert arbitrary HTML into the DOM by editing a page. This issue has been patched in version 3.4.0.

Recommendations: For versions 1.9.4 through 3.4.0, update to version 3.4.0 to patch this issue. As a temporary workaround, consider restricting the use of the ShortDescription extension until the update is applied.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-53370

GHSA-PRMV-7R8C-794G

Affected Products

Mediawiki Citizen Skin

Shortdescription Extension

References · 12

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53370.json · Exploit
• https://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-prmv-7r8c-794g · Vendor Advisory
• https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/c85a40bddc8651fff66df83a72debddcb34f0521 · Patch
• https://osv.dev/vulnerability/CVE-2025-53370 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-53370 · Security Note
• https://osv.dev/vulnerability/GHSA-prmv-7r8c-794g · Vendor Advisory
• https://github.com/StarCitizenTools/mediawiki-skins-Citizen · Note
• https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/aedbceb3380bb48db6b59e272fc187529c71c8ca · Note
• https://github.com/StarCitizenTools/mediawiki-skins-Citizen/releases/tag/v3.4.0 · Note
• https://twitter.com/VulmonFeeds/status/1940913994732036568 · Twitter Post
• https://twitter.com/CveFindCom/status/1940865678103261216 · Twitter Post
• https://twitter.com/CVEnew/status/1940876706488914355 · Twitter Post