CVE-2026-53804: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Centuran Consulting OTRS Community Edition
Description
CVE-2026-53804 is an authenticated OS command injection vulnerability in the PGP encryption module of Centuran Consulting's OTRS Community Edition. It allows administrators to execute arbitrary operating system commands by supplying crafted values for the PGP binary path and command options. The vulnerability arises because administrator-supplied configuration values are concatenated without proper sanitization into shell commands, enabling command execution as the web server process user during normal ticket operations.
CVSS v4.0
Score 8.6high
Affected software
Centuran Consulting
OTRS Community Edition
pkg:github/OTRS Community EditionRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in OTRS Community Edition's PGP encryption module permits authenticated administrators to inject and execute arbitrary OS commands. The flaw is due to improper neutralization of special elements in administrator-supplied configuration parameters, specifically the PGP binary path and command options. These inputs are concatenated directly into shell commands without sanitization, leading to command injection executed with the privileges of the web server process during ticket handling.
Potential Impact
An attacker with administrator privileges can execute arbitrary operating system commands as the web server user, potentially compromising the server's integrity and confidentiality. This could lead to unauthorized access, data manipulation, or further system compromise. The CVSS 4.0 score of 8.6 (high severity) reflects the ease of exploitation and the significant impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict administrator access to trusted personnel only and review configuration inputs carefully to avoid injection of malicious command parameters.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-06-10T20:14:32.829Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a87701facd9273b49247123
Added to database: 08/20/2026, 21:22:39 UTC
Last enriched: 09/10/2026, 21:47:25 UTC
Last updated: 10/04/2026, 18:53:17 UTC
Views: 68
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