CVE-2026-33477 json
FileRise has incorrect authorization in /api/file/snippet.php allows read_own users to read other users’ file content
published 2026-03-26 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-16277
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 14%
- public exploits
- 0
- none known
Summary
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. In versiosn 2.3.7 through 3.10.0, the file snippet endpoint `/api/file/snippet.php` allows an authenticated user with only `read_own` access to a folder to retrieve snippet content from files uploaded by other users in the same folder. This is a server-side authorization flaw in the `read_own` enforcement for hover previews. Version 3.11.0 fixes the issue.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/error311/FileRise/security/advisories/GHSA-62wx-vp78-2p83 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected products
- error311 FileRise
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/error311/FileRise/security/advisories/GHSA-62wx-vp78-2p83
exploit, mitigation, vendor-advisory
-
github.com
/error311/FileRise/releases/tag/v3.11.0
release-notes
Sources
- CVE List CVE-2026-33477
- NVD CVE-2026-33477
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