Authorization bypass through user-controlled key in wger - CVE-2026-27839
Published: February 27, 2026
Vulnerability identifier: #VU123336
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2026-27839
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: wger Project
Affected software:
wger
wger
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the IDOR issue in nutritional_values endpoints. A remote user can gain access to sensitive information on the target system.
How to mitigate CVE-2026-27839
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.