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CVE-2025-53370

Citizen stored XSS vulnerability through short descriptions

MEDIUM
5.4
CVSS Score
Published: July 3, 2025 at 07:45 PM UTC
Updated: June 17, 2026 at 09:38 AM UTC
2 products affected across 1 vendorCitizenTools Citizen

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Citizen· Starcitizen Toolsmediawiki
95%
1.9.4 ≤ v < 3.4.0
Affected range stops below 3.4.0, so it looks safe — our inference, not a vendor statement
Tools Citizen· Starcitizen Tools
60%
v < 3.4.0>= 65a7ffd927467c8c3557146d1ac6de62b0369b6c, < c85a40bddc8651fff66df83a72debddcb34f0521
Affected range stops below 3.4.0, so it looks safe — our inference, not a vendor statement

References (3)

x_refsource_MISCPatch
Source: [email protected]
https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/c85a40bddc8651fff66df83a72debddcb34f0521
x_refsource_MISCRelease Notes
Source: [email protected]
https://github.com/StarCitizenTools/mediawiki-skins-Citizen/releases/tag/v3.4.0
x_refsource_CONFIRMExploitVendor Advisory
Source: [email protected]
https://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-prmv-7r8c-794g

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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