Path traversal in BookStack - #VU57965
Published: November 5, 2021
Vulnerability identifier: #VU57965
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Dan Brown
Affected software:
BookStack
BookStack
Detailed vulnerability description
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in the uploaded image files. A remote user can send a specially crafted HTTP request and write files to arbitrary directory on the system.
Remediation
Install update from vendor's website.