Vulnerability Description
GlobalNewFiles is a MediaWiki extension maintained by Miraheze. Prior to commit number cee254e1b158cdb0ddbea716b1d3edc31fa4fb5d, the username column of the GlobalNewFiles special page is vulnerable to a stored XSS. Commit number cee254e1b158cdb0ddbea716b1d3edc31fa4fb5d contains a patch. As a workaround, one may disallow <,> (or other characters required to insert html/js) from being used in account names so an XSS is not possible.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Miraheze | Globalnewfiles | < 2021-09-01 |
Related Weaknesses (CWE)
References
- https://github.com/miraheze/GlobalNewFiles/commit/cee254e1b158cdb0ddbea716b1d3edPatchThird Party Advisory
- https://github.com/miraheze/GlobalNewFiles/security/advisories/GHSA-57p5-hqjq-h7Third Party Advisory
- https://phabricator.miraheze.org/T7935ExploitThird Party Advisory
- https://github.com/miraheze/GlobalNewFiles/commit/cee254e1b158cdb0ddbea716b1d3edPatchThird Party Advisory
- https://github.com/miraheze/GlobalNewFiles/security/advisories/GHSA-57p5-hqjq-h7Third Party Advisory
- https://phabricator.miraheze.org/T7935ExploitThird Party Advisory
FAQ
What is CVE-2021-39186?
CVE-2021-39186 is a vulnerability with a CVSS score of 4.3 (MEDIUM). GlobalNewFiles is a MediaWiki extension maintained by Miraheze. Prior to commit number cee254e1b158cdb0ddbea716b1d3edc31fa4fb5d, the username column of the GlobalNewFiles special page is vulnerable to...
How severe is CVE-2021-39186?
CVE-2021-39186 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-39186?
Check the references section above for vendor advisories and patch information. Affected products include: Miraheze Globalnewfiles.