CVE-2025-65963: CFiles Unauthorized Folder/ZIP Access in Public Spaces

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-26 · updated 2026-10-18
Weakness: CWE-284

Description

Files is a module for managing files inside spaces and user profiles. Prior to versions 0.16.11 and 0.17.2, insufficient authorization checks allow non-member users to create new folders, up- and download files as a ZIP archive in public spaces. Private spaces are not affected. This issue has been patched in versions 0.16.11 and 0.17.2.

Affected products

humhub cfiles: before 0.16.11; from 0.17.0, < 0.17.2

References

https://github.com/humhub/cfiles/commit/75698f8e8f360cea470f0e9f264015b697ab4c09
https://github.com/humhub/cfiles/security/advisories/GHSA-rv2x-7qwp-2hf4

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