CVE-2026-43643 Details
Description
Softaculous Virtualizor before 3.2.9 (Patch 9) and 3.0.0 contains an authorization bypass vulnerability in the billing module handler that allows unauthenticated remote attackers to modify any tenant's account balance by supplying crafted act and from_billing_module parameters to the admin panel dispatcher. Attackers can send a POST request with arbitrary uid and balance values in the billing_data field to trigger an unauthenticated parameterized UPDATE against the users table, enabling account balance manipulation and potential automated service suspension for targeted accounts.
An authorization bypass vulnerability has been identified in Softaculous Virtualizor versions prior to 3.2.9 (Patch 9) and 3.0.0. The vulnerability resides in the billing module handler, where unauthenticated remote attackers can manipulate tenant account balances. By sending crafted 'act' and 'from_billing_module' parameters to the admin panel dispatcher, attackers can trigger an unauthorized, parameterized SQL UPDATE that modifies account balances in the users table. This exploitation could lead to automated service suspensions for the affected accounts.
Users are advised to update to Virtualizor version 3.2.9 (Patch 9) or 3.3.0, both of which include the necessary fixes. After updating, ensure that the admin panel ports are not exposed to the public internet or are behind an allowlist.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 22, 2026CISA-ADP
Assessed Sep 22, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.virtualizor.com/blog/virtualizor-3-2-9-launched-release-candidate-patch-9/ | [email protected] | Release NotesVendor |
| https://www.virtualizor.com/blog/virtualizor-3-3-0/ | [email protected] | Release NotesVendor |
| https://www.vulncheck.com/advisories/softaculous-virtualizor-authorization-bypass-via-billing-module-handler | [email protected] | AdvisoryRemedy |
| https://www.vulncheck.com/blog/virtualizor-billing-hook-unauthenticated-root-rce | [email protected] | BundleExploitRemedyTechnical Analysis |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Softaculous Virtualizor | < 3.2.9 (Patch 9) < 3.0.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 22, 2026 | CVE Modified | CISA-ADP |
| Sep 22, 2026 | New CVE Received | [email protected] |