CVE-2025-49578

MEDIUMNVD 6.56.5—Elevated

6.5

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 v3: 6.5
EG Score: 6.5(medium)
EPSS: 36.0%
KEV: Not listed

Published

June 12, 2025

Last Modified

August 22, 2025

References (3)

security-advisories@githubhttps://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/64cb5d7ab3a6dc0381fae54b31e8fc4afadc8beb
security-advisories@githubhttps://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/93c36ac778397e0e7c46cf7adb1e5d848265f1bd
security-advisories@githubhttps://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-2v3v-3whp-953h

Affected Packages

(1 across 1 ecosystem)

Packagist(1)

Package	Vulnerable range	Fixed in	Dependents
starcitizentools/citizen-skin	v3.3.0	3.3.1	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-79Cross-site Scripting (XSS)

Data Freshness Timeline

(refreshed 10× in last 7d / 10× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-30 03:36 UTCEG score recompute
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-49578?

CVE-2025-49578 is a medium vulnerability published on June 12, 2025. 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…

When was CVE-2025-49578 disclosed?

CVE-2025-49578 was first published in the National Vulnerability Database on June 12, 2025, with the most recent update on August 22, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-49578 actively exploited?

CVE-2025-49578 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-49578?

CVE-2025-49578 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2025-49578?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-49578, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-49578

📅 Published

🔄 Last Modified

🔗 References (3)

Affected Packages

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-49578?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (3)

Frequently asked(5)

Related CVEs(same CWE)