CVE-2026-57493
MEDIUM 6.8FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.16.0, FileRise stores the isAdmin flag in remember-me tokens and restores that stale value during automatic login instead of resolving the account's current role from users.txt. A user who was issued a token while an administrator can retain administrator access after demotion, and token rotation copies the stale privilege into each replacement token. Exploitation requires possession of the pre-demotion remember-me token. This issue is fixed in version 3.16.0.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.3%chance of exploitation in 30 days · 23rd percentile
Impact if exploited
6.8CVSS 3.1 · MEDIUM
- 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: Needs a race window or specific setup
✓ 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-613: : Insufficient Session Expiration
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
References and research data (JSON)
All CVSS metrics
- MEDIUM 6.8 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N - MEDIUM 6.8 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:H/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-r55g-3hcc-6jx7 CVE record · GitHub_M · Updated 2026-10-14T20:22:06.735Z
CVE record · CISA-ADP · Updated 2026-10-20T02:08:08.010Z
NVD · CVE-2026-57493 · Updated 2026-10-20T03:17:15.970
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-101666 EUVD · EUVD-2026-101666
Technical & other
- https://github.com/error311/FileRise/commit/f7114ca2a4e624238dda0d097a07ad6b05c11bb6 CVE record · GitHub_M · Updated 2026-10-14T20:22:06.735Z
NVD · CVE-2026-57493 · Updated 2026-10-20T03:17:15.970 - https://github.com/error311/FileRise/releases/tag/v3.16.0 CVE record · GitHub_M · Updated 2026-10-14T20:22:06.735Z
NVD · CVE-2026-57493 · Updated 2026-10-20T03:17:15.970