6.5

CVE-2025-49578: Citizen allows stored XSS in user registration date message

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

Vulnerability summary

CVE-2025-49578 is a medium (CVSS 6.5) Cross-site Scripting vulnerability in starcitizen.tools citizen. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.7% 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
0.43%
0%100%
Low · +0.01 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. Various date messages returned by `Language::userDate` are inserted into 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

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.42% 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≥ 64cb5d7ab3a6dc0381fae54b31e8fc4afadc8beb, < 93c36ac778397e0e7c46cf7adb1e5d848265f1bd | ≥ 3.3.0, < 3.3.1

2 vendors · 2 products

References

3 links