CVE-2026-119364

ProFTPD through 1.3.9e and 1.3.10rc1 through 1.3.10rc4 contains a link-following vulnerability in mod_copy that allows authenticated FTP users to bypass Limit WRITE restrictions via symlinks. Attackers can place a symlink in a writable directory and use SITE COPY or SITE CPTO to overwrite files in write-denied locations.

Referanslar

• https://abraxaslabs.tech/research/proftpd-site-copy-dest-follow
• https://github.com/proftpd/proftpd
• https://github.com/proftpd/proftpd/blob/v1.3.9e/contrib/mod_copy.c#L620
• https://github.com/proftpd/proftpd/commit/c41691f8981f98081fcb8a535c3c21b06a3f04af
• https://github.com/proftpd/proftpd/issues/2374
• https://github.com/proftpd/proftpd/releases/tag/v1.3.10rc5