Vulnerability Description
In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, XSS related to jQuery can occur. The attacker creates a message with [javascript:payload xss] and turns it into a jQuery object with mw.message().parse(). The expected result is that the jQuery object does not contain an <a> tag (or it does not have a href attribute, or it's empty, etc.). The actual result is that the object contains an <a href ="javascript... that executes when clicked.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mediawiki | Mediawiki | < 1.31.10 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.htmlMailing ListRelease NotesVendor Advisory
- https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.htmlMailing ListRelease NotesVendor Advisory
- https://www.mediawiki.org/wiki/ResourceLoader/Core_modules#mediawiki.jqueryMsgVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.htmlMailing ListRelease NotesVendor Advisory
- https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.htmlMailing ListRelease NotesVendor Advisory
- https://www.mediawiki.org/wiki/ResourceLoader/Core_modules#mediawiki.jqueryMsgVendor Advisory
FAQ
What is CVE-2020-25814?
CVE-2020-25814 is a vulnerability with a CVSS score of 6.1 (MEDIUM). In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, XSS related to jQuery can occur. The attacker creates a message with [javascript:payload xss] and turns it into a jQuery object wit...
How severe is CVE-2020-25814?
CVE-2020-25814 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-25814?
Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki, Fedoraproject Fedora.