6.5

CVE-2025-49579: Citizen allows stored XSS in menu heading message

Analyzed
Published 12-06-2025Last modified 12-06-2025

Vulnerability summary

CVE-2025-49579 is a medium (CVSS 6.5) Cross-site Scripting vulnerability in starcitizen.tools citizen. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.41%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Timeline

  1. 12-06-2025
    PublishedVulnerability first disclosed.
  2. 12-06-2025
    Last modifiedVulnerability information updated.

Description

Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. All system messages in menu headings using the Menu.mustache template are inserted as raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM. This impacts wikis where a group has the `editinterface` but not the `editsitejs` user right. This vulnerability is fixed in 3.3.1.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

34%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.41% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Mediawiki Skins Citizen

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Starcitizen.tools1 product
Starcitizentools1 product
  • mediawiki-skins-citizen≥ 54c8717d45ce1594918f11cb9ce5d0ccd8dfee65, < 93c36ac778397e0e7c46cf7adb1e5d848265f1bd | ≥ 2.4.2, < 3.3.1

2 vendors · 2 products

References

3 links