Protection mechanism failure in OWASP ModSecurity Core Rule Set (CRS) - #VU153221
Published: October 3, 2026
Vulnerability identifier: #VU153221
CSH Severity: Medium
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute commands with the privileges of the application process.
The vulnerability exists due to a protection mechanism failure in the 932 remote command execution rule family when command-injection payloads are placed in a URL path that the backend application passes to a shell. A remote attacker can send a crafted request containing a command-injection payload in the URL path to execute commands with the privileges of the application process.
Exploitation requires the backend application to pass a URL path segment into a shell.
Affected software
OWASP ModSecurity Core Rule Set (CRS)
Remediation
Install security update from vendor's website.
OWASP ModSecurity Core Rule Set (CRS) - addressed in versions 4.25.2, 4.30.0