Medium severity · published Mar 26, 2026
CVE-2026-33477
FileRise has incorrect authorization in /api/file/snippet.php allows read_own users to read other users’ file content
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
FileRise · error311
>= 2.3.7, < 3.11.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33477
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-33477
Release Notes
https://github.com/error311/FileRise/releases/tag/v3.11.0
Exploit
https://github.com/error311/FileRise/security/advisories/GHSA-62wx-vp78-2p83
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