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Fencer Vulns
medium 6.5

CVE-2025-49576 json

Citizen allows stored XSS in search no result messages

published 2025-06-12 16 mo ago modified 2026-06-17 4 mo ago also GHSA-86xf-2mgp-gv3g , EUVD-2025-18206

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. The citizen-search-noresults-title and citizen-search-noresults-desc system messages are inserted into raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM. This vulnerability is fixed in 3.3.1.

Patch / fix

  • packagist starcitizentools/citizen-skin 3.3.1
  • starcitizen.tools citizen 3.3.1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
16 mo ago

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-86xf-2mgp-gv3g referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
packagist starcitizentools/citizen-skin
>=2.31.0, <3.3.1
3.3.1

Affected products

  • StarCitizenTools mediawiki-skins-Citizen

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.