Vulnerability Description
ProFTPD before 1.3.9e and 1.3.10rc5 contains an authorization bypass in the mod_sftp copy-file extension handler that skips Limit WRITE checks for new destination files. Authenticated SFTP users can copy any readable file to a new path in write-denied directories, creating files where uploads are forbidden.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://abraxaslabs.tech/research/proftpd-sftp-copy-file-write
- https://github.com/proftpd/proftpd
- https://github.com/proftpd/proftpd/blob/v1.3.9d/contrib/mod_sftp/fxp.c#L4748
- https://github.com/proftpd/proftpd/commit/b7d3de4565ae448a510feecd17b41923e44bfe
- https://github.com/proftpd/proftpd/releases/tag/v1.3.10rc5
- https://github.com/proftpd/proftpd/releases/tag/v1.3.9e
- https://www.vulncheck.com/advisories/proftpd-before-1.3-9e-and-1.3-10rc5-mod-sft
FAQ
What is CVE-2026-119147?
CVE-2026-119147 is a vulnerability with a CVSS score of 4.3 (MEDIUM). ProFTPD before 1.3.9e and 1.3.10rc5 contains an authorization bypass in the mod_sftp copy-file extension handler that skips Limit WRITE checks for new destination files. Authenticated SFTP users can c...
How severe is CVE-2026-119147?
CVE-2026-119147 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-119147?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.