SB2021121035 - Relative Path Traversal in OpenOlat

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Main Vulnerability Database SB2021121035

SB2021121035 - Relative Path Traversal in OpenOlat

Published: December 10, 2021 Updated: April 27, 2026

Security Bulletin ID SB2021121035
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Relative Path Traversal (CVE-ID: CVE-2021-41242)

CWE-ID: CWE-23 - Relative Path Traversal

CVSSv4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to write files to arbitrary locations on the target system.

The vulnerability exists due to relative path traversal in some REST methods when processing a filename parameter containing a relative path. A remote user can supply a crafted filename parameter to write files to arbitrary locations on the target system.

Exploitation requires an enabled REST API and rights on a business object to call the vulnerable REST methods.


Remediation

Install update from vendor's website.

References