Auth bypass in Softaculous Virtualizor
CVE-2026-43643
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (49.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
Weakness classification (CWE)
References
- VulnCheck Blog (technical-description, exploit)
- 3.2.9 Patch 9 Release Notes (release-notes, patch)
- 3.3.0 Release Notes (release-notes, patch)
- www.vulncheck.com/advisories/softaculous-virtualizor-authorization-bypass-via-b… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-43643?
- CVE-2026-43643 is a high-severity vulnerability in Softaculous Virtualizor, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-09-22.
- How severe is CVE-2026-43643?
- High severity. CVSS v3 base score is 7.5 out of 10.