CVE-2026-119147

CVSS 5.3 (medium) · published 2026-10-30

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.

Weakness: CWE-863

Source: NVD CVE-2026-119147

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/b7d3de4565ae448a510feecd17b41923e44bfe16
• 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-sftp-copy-file-authorization-bypass

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