CVE-2026-43641
9.8
CRITICAL · CVSS 3.1 · EPSS 3% (pctl 87)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.03% — more likely to be exploited than 87% of all CVEs |
| Weakness | CWE-78 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2026-09-22 |
| Last modified | 2026-09-23 |
References
- https://www.virtualizor.com/blog/virtualizor-3-2-9-launched-release-candidate-patch-9/
- https://www.virtualizor.com/blog/virtualizor-3-3-0/
- https://www.vulncheck.com/advisories/softaculous-virtualizor-os-command-injection-via-billing-module-handler
- https://www.vulncheck.com/blog/virtualizor-billing-hook-unauthenticated-root-rce
→ the Explorer · watch your stack · NVD