RCE in Centuran Consulting Otrs Community Edition
CVE-2026-53804
OTRS Community Edition contains an authenticated OS command injection vulnerability in the PGP encryption module that allows administrators to execute arbitrary operating-system commands by supplying crafted values for the PGP binary path and command options. Administrator-supplied configuration values are concatenated without sanitization into a shell command, enabling arbitrary command execution as the web server process user during normal ticket operations after the malicious configuration is deployed.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.015 (73.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.015 · change: +0.003
Affected products
Weakness classification (CWE)
References
- h00die-gr3y.github.io/research/cve-2026-53804/ (technical-description, exploit)
- www.vulncheck.com/advisories/otrs-community-edition-os-command-injection-via-pg… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-53804?
- CVE-2026-53804 is a high-severity vulnerability in Centuran Consulting Otrs Community Edition, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-08-20.
- How severe is CVE-2026-53804?
- High severity. CVSS v3 base score is 7.2 out of 10.