CVE-2025-53369 Citizen Short Description stored XSS vulnerability through wikitext
An attacker can inject arbitrary HTML into the DOM via unsanitized short descriptions, potentially executing malicious scripts in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-53369?
CVE-2025-53369 is a high-severity cross-site scripting vulnerability in StarCitizenTools mediawiki-extensions-ShortDescription, published on 3 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Short Description is a MediaWiki extension that provides local short description support. In version 4.0.0, short descriptions are not properly sanitized before being inserted as HTML using mw.util.addSubtitle, allowing any user to insert arbitrary HTML into the DOM by editing a page. This issue has been patched in version 4.0.1.
Weakness: CWE-79
Which versions are affected by CVE-2025-53369?
2 open source packages ship an affected version, including starcitizentools/short-description.
| Package | Affected | Fixed in |
|---|---|---|
starcitizentools/short-description Packagist | From 4.0.0 | 4.0.1 |
starcitizentools/short-description Packagist | From 4.0.0 | 4.0.1 |
How do I fix CVE-2025-53369?
Upgrade starcitizentools/short-description to 4.0.1 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-53369 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53369 exists.
Sources
Also known as GHSA-p85q-mww9-gwqf.