CVE-2026-43641Softaculous Virtualizor OS Command Injection via Billing Module Handler
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No exploitation reported and no EPSS estimate yet.
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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
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Softaculous Virtualizor softaculous:virtualizor (from the name) | before 3.2.9 (Patch 9); 3.0.0 not affected | CNA record |
References
- https://www.vulncheck.com/blog/virtualizor-billing-hook-unauthenticated-root-rcetechnical-description, exploit
- https://www.virtualizor.com/blog/virtualizor-3-2-9-launched-release-candidate-patch-9/release-notes, patch
- https://www.virtualizor.com/blog/virtualizor-3-3-0/release-notes, patch
- https://www.vulncheck.com/advisories/softaculous-virtualizor-os-command-injection-via-billing-module-handlerthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.