Medium (6.7) in zammad zammad. EPSS 0.2% chance of exploitation in the next 30 days.
In Zammad before 6.3.1, a Ruby gem bundled by Zammad is installed with world-writable file permissions. This allowed a local attacker on the server to modify the gem's files, injecting arbitrary code into Zammad processes (which run with the environment and permissions of the Zammad user).
Severity
CVSS 3.1
6.7 medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-31)