Path traversal in baserCMS - #VU152764
Published: September 29, 2026
Vulnerability identifier: #VU152764
CSH Severity: Low
CVSS v4: 5.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper limitation of a pathname to a restricted directory in UploaderFilesController::view_limited_file() when handling filename path parameters. A remote privileged user can submit a crafted path traversal request to disclose sensitive information.
Route parameter delivery of traversal sequences requires double encoding.
Affected software
baserCMS
Remediation
Install security update from vendor's website.
baserCMS - addressed in versions 5.3.1, 5.4.1