CVE-2026-43641— Softaculous Virtualizor OS Command Injection via Billing Module Handler
Quick assessment
Affected
Softaculous Virtualizor
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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 specifi
Affected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Softaculous | Virtualizor | < 3.2.9 (Patch 9) |
affected |
3.0.0 |
unaffected |
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I. Basic Information for CVE-2026-43641
Vulnerability Information
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Vulnerability Title
Softaculous Virtualizor OS Command Injection via Billing Module Handler
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Softaculous | Virtualizor | 0 ~ 3.2.9 (Patch 9) | - |
|
II. Public POCs for CVE-2026-43641
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-43641 (4)
-
https://www.vulncheck.com/blog/virtualizor-billing-hook-unauthenticated-root-rce technical-description exploit
-
Same Patch Batch · Softaculous · 2026-09-22 · 3 CVEs total
| CVE-2026-43642 | 8.1 HIGH | Softaculous Virtualizor PHP Object Injection via Billing Module Handler |
| CVE-2026-43643 | 7.5 HIGH | Softaculous Virtualizor Authorization Bypass via Billing Module Handler |
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V. Comments for CVE-2026-43641
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