Description
ShortDescription is a MediaWiki extension that provides local short description support. A cross-site scripting (XSS) vulnerability exists in versions prior to 2.3.4. On a wiki that has the ShortDescription enabled, XSS can be triggered on any page or the page with the action=info parameter, which displays the shortdesc property. This is achieved using the wikitext `{{SHORTDESC:<img src=x onerror=alert()>}}`. This issue has a patch in version 2.3.4.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| StarCitizenTools | mediawiki-extensions-ShortDescription | < 2.3.4 | — |
References
- https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/security/advisories/GHSA-mgcp-qw2r-6832
- https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/commit/7c86644158388620c6c858258cc4e1a8de6e48ea
- https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/commit/bf568edd892adb8528dcb64f75dddf3eeaccc12c