Vulnerability Details CVE-2021-39186
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 53.2%
CVSS Severity
CVSS v3 Score 4.3
CVSS v2 Score 4.3
References
- https://github.com/miraheze/GlobalNewFiles/commit/cee254e1b158cdb0ddbea716b1d3edc31fa4fb5d
- https://github.com/miraheze/GlobalNewFiles/security/advisories/GHSA-57p5-hqjq-h7vg
- https://phabricator.miraheze.org/T7935
- https://github.com/miraheze/GlobalNewFiles/commit/cee254e1b158cdb0ddbea716b1d3edc31fa4fb5d
- https://github.com/miraheze/GlobalNewFiles/security/advisories/GHSA-57p5-hqjq-h7vg
- https://phabricator.miraheze.org/T7935
Products affected by CVE-2021-39186
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cpe:2.3:a:miraheze:globalnewfiles:-