CVE-2025-49578: Citizen is a MediaWiki skin that makes extensions part of the cohesive experience

Q: How do I fix CVE-2025-49578?

citizen: upgrade to 3.3.1. Exact commands for each OS are on this page.

Q: Is CVE-2025-49578 being exploited?

CVE-2025-49578 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-49578 affect?

CVE-2025-49578 affects citizen. Severity is medium (CVSS 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

Q: How urgent is CVE-2025-49578?

Priority 37/100. Public exploit reference

Routine

MEDIUM 6.5UPGRADE

CVE-2025-49578 is a medium-severity flaw (CVSS 6.5) affecting citizen. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-06-12
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: starcitizen.tools

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-12 19:15 UTCPublished CVE record published
2026-06-17 09:31 UTCUpdated Record last modified

starcitizen.tools citizen UPGRADE

Affected: < 3.3.1

Fixed in: 3.3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy citizen || rpm -q citizen || citizen --version

2. UPGRADE to 3.3.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade citizen

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade citizen

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-49578?

citizen: upgrade to 3.3.1. Exact commands for each OS are on this page.

Is CVE-2025-49578 being exploited?

CVE-2025-49578 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-49578 affect?

CVE-2025-49578 affects citizen. Severity is medium (CVSS 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

How urgent is CVE-2025-49578?

Priority 37/100. Public exploit reference

Related CVEs

CVE-2025-53370 HIGH 8.6 UPGRADE Citizen is a MediaWiki skin that makes extensions part of the cohesive experience
CVE-2025-53368 HIGH 8.6 UPGRADE Citizen is a MediaWiki skin that makes extensions part of the cohesive experience
CVE-2025-49579 MEDIUM 6.5 UPGRADE Citizen is a MediaWiki skin that makes extensions part of the cohesive experience
CVE-2025-49577 MEDIUM 6.5 UPGRADE Citizen is a MediaWiki skin that makes extensions part of the cohesive experience
CVE-2025-49576 MEDIUM 6.5 UPGRADE Citizen is a MediaWiki skin that makes extensions part of the cohesive experience

References

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