CVE-2026-43641: Softaculous Virtualizor OS command injection in billing module

CVE-2026-43641 · Severity: critical · CVSS 9.8 · Published 2026-09-22

Softaculous Virtualizor is a virtualization management platform for hosting providers. An unauthenticated remote attacker can exploit an OS command injection vulnerability in the billing module to execute arbitrary commands with root privileges, gaining complete control of the hypervisor and all hosted virtual machines. This is a critical vulnerability that requires an immediate patch deployment.

Technologies: Softaculous Virtualizor. Vendors: Softaculous.

Quick answers

Is CVE-2026-43641 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-43641 being exploited in the wild.
How severe is CVE-2026-43641?
Critical severity, with a CVSS score of 9.8, published 22 September 2026.
Which products and versions are affected?
Softaculous Virtualizor before 3.2.9 (Patch 9) and 3.0.0.
Is there a fix for CVE-2026-43641?
A patch was published on 2026-09-01: Virtualizor 3.2.9 Patch 9 released with security fixes Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-43641 attacked?
It is attacked over the network.
Am I affected by CVE-2026-43641?
Check whether you run Softaculous Virtualizor at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in the billing module handler where user-supplied input in the uid field of a crafted billing_data POST parameter is deserialized and passed unmodified to proc_open() via vexec(), enabling OS command injection. The flaw allows unauthenticated attackers to bypass authentication through specific parameter combinations and inject arbitrary shell payloads, resulting in remote code execution as the root user.

Affected products

  • Softaculous Virtualizor before 3.2.9 (Patch 9) and 3.0.0

Timeline

  • 2026-09-22: disclosed: CVE-2026-43641 published on NVD
  • 2026-09-01: patched: Virtualizor 3.2.9 Patch 9 released with security fixes

References

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