CVE-2021-39186
MEDIUMGlobalNewFiles < 2021-09-01 - Stored Cross-Site Scripting in Username Column
Title source: llmDescription
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.
References (3)
Core 3
Core References
Third Party Advisory x_refsource_confirm
https://github.com/miraheze/GlobalNewFiles/security/advisories/GHSA-57p5-hqjq-h7vg
Patch, Third Party Advisory x_refsource_misc
https://github.com/miraheze/GlobalNewFiles/commit/cee254e1b158cdb0ddbea716b1d3edc31fa4fb5d
Exploit, Third Party Advisory x_refsource_misc
https://phabricator.miraheze.org/T7935
Scores
CVSS v3
4.3
EPSS
0.0101
EPSS Percentile
58.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Details
CWE
CWE-20
Status
published
Products (1)
miraheze/globalnewfiles
< 2021-09-01
Published
Sep 01, 2021
Tracked Since
Feb 18, 2026