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CVE-2026-43642— Softaculous Virtualizor PHP Object 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 a PHP object injection vulnerability in the billing module handler that allows unauthenticated remote attackers to supply arbitrary serialized PHP objects for deserialization by setting the act

CVSS 8.1 · High

Affected Version Matrix 2

VendorProduct Version RangeStatus
Softaculous Virtualizor < 3.2.9 (Patch 9) affected
3.0.0 unaffected
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I. Basic Information for CVE-2026-43642

Vulnerability Information

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Vulnerability Title
Softaculous Virtualizor PHP Object 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 a PHP object injection vulnerability in the billing module handler that allows unauthenticated remote attackers to supply arbitrary serialized PHP objects for deserialization by setting the act parameter to login with the from_billing_module parameter present. Attackers can pass malicious serialized data through the billing_data POST field to the unserialize() function without allowed_classes restrictions, enabling exploitation of available POP chains to achieve remote code execution as root.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
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-2026-43642

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III. Intelligence Information for CVE-2026-43642

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Other References for CVE-2026-43642 (4)

Same Patch Batch · Softaculous · 2026-09-22 · 3 CVEs total

CVE-2026-43641 9.8 CRITICAL Softaculous Virtualizor OS Command Injection via Billing Module Handler
CVE-2026-43643 7.5 HIGH Softaculous Virtualizor Authorization Bypass via Billing Module Handler

IV. Related Vulnerabilities

Same product: Virtualizor
Same vendor: Softaculous
Same weakness: CWE-502

V. Comments for CVE-2026-43642

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