CVE-2026-57490
HIGH 8.1FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.16.0, when an administrator has enabled WebDAV, FileRise WebDAV Basic authentication validates only the account username and password through AuthModel::authenticate() and does not enforce the account's configured TOTP factor. An attacker who knows valid primary credentials for a TOTP-enabled account can authenticate to the enabled WebDAV service without supplying the second factor and exercise the account's WebDAV file permissions. The browser login path enforces TOTP, but the separate public/webdav.php authentication callback did not. This issue is fixed in version 3.16.0.
Severe if exploited (CVSS 8.1), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.5%chance of exploitation in 30 days · 44th percentile
Impact if exploited
8.1CVSS 3.1 · HIGH
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityNone
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
- CWE-308: : Use of Single-factor Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References and research data (JSON)
All CVSS metrics
- HIGH 8.1 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - HIGH 8.1 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References
Exploit-tagged references (not proof of a PoC)
- https://github.com/error311/FileRise/security/advisories/GHSA-cx7g-xhj8-8cx3 CVE record · GitHub_M · Updated 2026-10-14T20:20:23.954Z
CVE record · CISA-ADP · Updated 2026-10-15T15:35:20.923Z
NVD · CVE-2026-57490 · Updated 2026-10-15T16:18:17.657
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-101637 EUVD · EUVD-2026-101637
Technical & other
- https://github.com/error311/FileRise/commit/f7114ca2a4e624238dda0d097a07ad6b05c11bb6 CVE record · GitHub_M · Updated 2026-10-14T20:20:23.954Z
NVD · CVE-2026-57490 · Updated 2026-10-15T16:18:17.657 - https://github.com/error311/FileRise/releases/tag/v3.16.0 CVE record · GitHub_M · Updated 2026-10-14T20:20:23.954Z
NVD · CVE-2026-57490 · Updated 2026-10-15T16:18:17.657