Softaculous Virtualizor OS Command Injection via Billing Module Handler
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| softaculous | Virtualizor | before 3.2.9 (Patch 9) | 3.2.9 (Patch 9), 3.0.0 | Patch available | CNA |
- Virtualizor Vendorsoftaculous Affected before 3.2.9 (Patch 9) Fixed in 3.2.9 (Patch 9), 3.0.0 Patch available CNA
Remediation
- Fix · CNA Virtualizor (Softaculous) Fixed in 3.2.9 (Patch 9), 3.0.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Softaculous Virtualizor 3.2.9 (Patch 9)
3 records Highest priority Priority HIGH 1 HIGH, 2 MEDIUM
Other records, highest priority first
- TI-2026-31745 Softaculous Virtualizor Authorization Bypass via Billing Module HandlerPriority MEDIUM 45
- TI-2026-31744 Softaculous Virtualizor PHP Object Injection via Billing Module HandlerPriority MEDIUM 44
Timeline
- 2026-10-02 Threatist record created from CVE-2026-43641
- 2026-10-03 Alias added: GHSA-x23m-fhhv-vj5x
References
More softaculous vulnerabilities
- TI-2024-01104 AMPPS Encryption Passphrase denial of service CVSS 3.1HIGH 7.5
- TI-2024-08042 Backuply – Backup, Restore, Migrate and Clone <= 1.3.4 - Authenticated (Admin+) SQL Injection CVSS 3.1CRITICAL 9.1
- TI-2024-16212 Softaculous Webuzo Authentication Bypass CVSS 3.1CRITICAL 9.8
- TI-2026-31745 Softaculous Virtualizor Authorization Bypass via Billing Module Handler CVSS 4.0HIGH 8.7
- TI-2024-07404 FileOrganizer <= 1.0.9 - Authenticated (Subscriber+) Arbitrary File Upload CVSS 3.1HIGH 8.8
- TI-2017-04298 The WHMCS Reseller Module V2 2.0.2 in Softaculous Virtualizor before 2.9.1.0 does not… CVSS 3.0CRITICAL 9.9
Sources
- CVE-2026-43641 · CVE Program
- CVE-2026-43641 · NVD
- FIRST EPSS
- GHSA-x23m-fhhv-vj5x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences