GHSA-6rhc-3jj8-rcqxHighCVSS 8.8
Usermin through 2.570 contains a path traversal vulnerability in mailbox/detachall.cgi that...
🔗 CVE IDs covered (1)
📋 Description
Usermin through 2.570 contains a path traversal vulnerability in mailbox/detachall.cgi that allows remote unauthenticated attackers to write files outside the temporary directory via unsanitized attachment filenames. Attackers can email attachments with ../ sequences in filenames, and when the recipient downloads all attachments, files like ~/.forward are overwritten, enabling command execution.
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2026-123621
- https://github.com/webmin/usermin/issues/142
- https://github.com/webmin/usermin/commit/cb4614e8319e0932b10533a4d5606debf5f40e14
- https://github.com/webmin/usermin
- https://github.com/webmin/usermin/blob/2.570/mailbox/detachall.cgi#L43-L51
- https://hackmd.io/@leediay/H144QKY6zl
- https://www.vulncheck.com/advisories/usermin-through-2.570-path-traversal-file-write-via-detachall-cgi
- https://github.com/advisories/GHSA-6rhc-3jj8-rcqx