CVE-2026-61844: high-severity vulnerability in error311 FileRise
FileRise: Folder Metadata Filename Collisions Bypass "read_own" Isolation
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.3%
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.18.0, FileRise flattens logical folder paths into metadata filenames by replacing separators and spaces with hyphens, so distinct folders such as team/docs and team-docs can share one metadata file. Because uploader metadata is used to authorize read_own and ownership-restricted edits, a low-privileged user who controls one colliding folder, knows the target basename, and already has read_own access to the target folder can alter the metadata used by that folder, make the victim file appear attacker-owned, read it, and modify it when edit-own permission is also available. This issue is fixed in version 3.18.0.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
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%