CVE-2026-65711: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in nuxsmin sysPass
sysPass through version 3.2.11 contains an OS command injection vulnerability that allows authenticated administrators to execute arbitrary commands as the web server process user by setting a malicious backup path and triggering a backup. The FileBackupService builds a tar shell command via string concatenation, inserting the admin-configurable siteBackupPath setting without escapeshellarg() or equivalent sanitization before passing it to exec(), causing injected commands to persist and execute on every subsequent backup trigger.
AI Analysis
Technical Summary
CVE-2026-65711 is an OS command injection vulnerability in sysPass through version 3.2.11. The vulnerability arises in the FileBackupService, which constructs a tar shell command by concatenating the admin-configurable siteBackupPath setting without proper sanitization such as escapeshellarg(). This allows authenticated administrators to inject arbitrary OS commands that execute with the privileges of the web server process whenever a backup is triggered.
Potential Impact
An authenticated administrator can execute arbitrary OS commands as the web server user by setting a malicious backup path and triggering a backup. This could lead to unauthorized system control or persistence on the affected host. The vulnerability requires administrator privileges and does not involve user interaction beyond triggering a backup.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict administrator access and avoid triggering backups with untrusted backup path inputs. Monitor vendor communications for an official fix or mitigation instructions.
CVE-2026-65711: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in nuxsmin sysPass
Description
sysPass through version 3.2.11 contains an OS command injection vulnerability that allows authenticated administrators to execute arbitrary commands as the web server process user by setting a malicious backup path and triggering a backup. The FileBackupService builds a tar shell command via string concatenation, inserting the admin-configurable siteBackupPath setting without escapeshellarg() or equivalent sanitization before passing it to exec(), causing injected commands to persist and execute on every subsequent backup trigger.
CVSS v4.0
Score 8.6high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-65711 is an OS command injection vulnerability in sysPass through version 3.2.11. The vulnerability arises in the FileBackupService, which constructs a tar shell command by concatenating the admin-configurable siteBackupPath setting without proper sanitization such as escapeshellarg(). This allows authenticated administrators to inject arbitrary OS commands that execute with the privileges of the web server process whenever a backup is triggered.
Potential Impact
An authenticated administrator can execute arbitrary OS commands as the web server user by setting a malicious backup path and triggering a backup. This could lead to unauthorized system control or persistence on the affected host. The vulnerability requires administrator privileges and does not involve user interaction beyond triggering a backup.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict administrator access and avoid triggering backups with untrusted backup path inputs. Monitor vendor communications for an official fix or mitigation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-07-22T20:26:09.982Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6398959c2644c7f843de72
Added to database: 07/24/2026, 16:53:41 UTC
Last enriched: 07/31/2026, 21:01:42 UTC
Last updated: 09/07/2026, 11:25:11 UTC
Views: 104
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