CVE-2026-92616: high-severity vulnerability in error311 FileRise
FileRise < 3.28.0 Privilege Escalation via WebDAV Session Inheritance
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.6epss 0.4%
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.
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
error311 · FileRiseRelated CVEs — error311 FileRise
In the same product, most dangerous first.
CVE-2026-25231HIGHFileRise affected by an Unauthenticated File Read Due to Insufficient Access ControlEPSS 1.7%CVE-2026-54414CRITICALFileRise shared-folder upload path traversal allows arbitrary file write and admin takeoverEPSS 0.7%CVE-2026-33071MEDIUMFileRise: WebDAV upload path bypasses filename validation enforced by regular uploadsEPSS 0.7%CVE-2026-57489HIGHFileRise: AUTH_BYPASS reverse-proxy header trust without source IP validation enables full authentication bypassEPSS 0.6%CVE-2026-57490HIGHFileRise: WebDAV authentication bypasses TOTP/MFA entirelyEPSS 0.5%CVE-2026-33329HIGHFileRise: Path Traversal in `resumableIdentifier` Leading to Arbitrary File Write, Recursive Directory Deletion, and Limited Existence OracleEPSS 0.5%