CVE-2026-61844
HIGH 7.1FileRise 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.
Severe if exploited (CVSS 7.1), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.3%chance of exploitation in 30 days · 25th percentile
Impact if exploited
7.1CVSS 3.1 · HIGH
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityLow
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-706: : Use of Incorrectly-Resolved Name or Reference
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
References and research data (JSON)
All CVSS metrics
- HIGH 7.1 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L - HIGH 7.1 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
References
Exploit-tagged references (not proof of a PoC)
- https://github.com/error311/FileRise/security/advisories/GHSA-qpm8-pgmq-wxmh CVE record · GitHub_M · Updated 2026-10-14T20:23:53.321Z
CVE record · CISA-ADP · Updated 2026-10-15T13:55:51.328Z
NVD · CVE-2026-61844 · Updated 2026-10-15T14:17:26.637
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-101669 EUVD · EUVD-2026-101669
Technical & other
- https://github.com/error311/FileRise/commit/9ed1a38f00918849dbda30f54291d1451ed80d11 CVE record · GitHub_M · Updated 2026-10-14T20:23:53.321Z
NVD · CVE-2026-61844 · Updated 2026-10-15T14:17:26.637 - https://github.com/error311/FileRise/releases/tag/v3.18.0 CVE record · GitHub_M · Updated 2026-10-14T20:23:53.321Z
NVD · CVE-2026-61844 · Updated 2026-10-15T14:17:26.637