The filename of uploaded files vulnerable to stored XSS in Bolt CMS
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-4041
Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/bolt/bolt/pull/7853
- https://github.com/bolt/bolt/commit/b42cbfcf3e3108c46a80581216ba03ef449e419f
- https://github.com/bolt/bolt/security/advisories/GHSA-68q3-7wjp-7q3j
- http://packetstormsecurity.com/files/158299/Bolt-CMS-3.7.0-XSS-CSRF-Shell-Upload.html
- http://seclists.org/fulldisclosure/2020/Jul/4
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