Vulnerability Description
Softaculous Virtualizor before 3.2.9 (Patch 9) and 3.0.0 contains an OS command injection vulnerability in the billing module handler that allows unauthenticated remote attackers to execute arbitrary commands as root by bypassing authentication through specific parameter combinations. Attackers can deserialize a crafted billing_data POST field and inject shell payloads through the uid field, which is passed unmodified to proc_open() via vexec(), yielding complete control of the host and all managed VPS instances.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://www.virtualizor.com/blog/virtualizor-3-2-9-launched-release-candidate-pa
- https://www.virtualizor.com/blog/virtualizor-3-3-0/
- https://www.vulncheck.com/advisories/softaculous-virtualizor-os-command-injectio
- https://www.vulncheck.com/blog/virtualizor-billing-hook-unauthenticated-root-rce
FAQ
What is CVE-2026-43641?
CVE-2026-43641 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Softaculous Virtualizor before 3.2.9 (Patch 9) and 3.0.0 contains an OS command injection vulnerability in the billing module handler that allows unauthenticated remote attackers to execute arbitrary ...
How severe is CVE-2026-43641?
CVE-2026-43641 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-43641?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.