CVE-2026-58451 Horde IMP < 7.0.1 Path Traversal via Compose.php img src

Horde IMP before 7.0.1 contains a path traversal vulnerability in lib/Compose.php that allows authenticated attackers to read arbitrary files from the server filesystem by embedding traversal sequences after a CKEditor path prefix in img src URLs. Attackers can bypass the stripos prefix validatio...