CVE-2026-92616
MediumCVSS 6.8Summary
FileRise before version 3.28.0 contains a privilege escalation vulnerability that allows authenticated low-privilege attackers to gain unauthorized read and write access by exploiting improper session isolation between the WebDAV interface and the web application session context. Attackers can combine valid Basic-Auth credentials with an active admin PHPSESSID cookie to bypass authorization boundaries.
Risk Assessment
A low-privilege attacker can gain unauthorized read and write access, leading to data confidentiality and integrity breaches. This requires valid Basic-Auth credentials and an active admin session.
Recommendation
Update FileRise to version 3.28.0 or later, which contains the fix for this issue.
Other vulnerabilities in FileRise
Original NVD description (English source)
FileRise before version 3.28.0 contains a privilege escalation vulnerability that allows authenticated low-privilege attackers to gain unauthorized read and write access by exploiting improper session isolation between the WebDAV interface and the web application session context. Attackers can combine valid Basic-Auth credentials with an active admin PHPSESSID cookie to bypass authorization boundaries, as the WebDAV layer incorrectly inherits elevated privileges from an ambient web session rather than enforcing independent stateless authentication per RFC 4918.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS