The filename of uploaded files vulnerable to stored XSS in Bolt CMS
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.4epss 2.0%
exploitation probability
2.0%top 21% of all CVEs
observed exploitation
nono source reports it
In Bolt CMS before version 3.7.1, the filename of uploaded files was vulnerable to stored XSS. It is not possible to inject javascript code in the file name when creating/uploading the file. But, once created/uploaded, it can be renamed to inject the payload in it. Additionally, the measures to prevent renaming the file to disallowed filename extensions could be circumvented. This is fixed in Bolt 3.7.1.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
Affected products
bolt · boltReferences
http://packetstormsecurity.com/files/158299/Bolt-CMS-3.7.0-XSS-CSRF-Shell-Upload.htmlhttp://seclists.org/fulldisclosure/2020/Jul/4https://github.com/bolt/bolt/commit/b42cbfcf3e3108c46a80581216ba03ef449e419fhttps://github.com/bolt/bolt/pull/7853https://github.com/bolt/bolt/security/advisories/GHSA-68q3-7wjp-7q3j