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Virtualizor CVE-2026-43643: Missing Authorization Check

Virtualizor is affected by 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. Affected versions: before 3.2.9 (Patch 9). Fixed in 3.2.9 (Patch 9). CVSS base score: 7.5.

High 7.5 CVSS
Virtualizor AlmaLinux 8 AlmaLinux 9 Debian 12 Ubuntu 22.04

Затронутые версии

before 3.2.9 (Patch 9)

Исправленная версия

3.2.9 (Patch 9)

Команда обновления по умолчанию

yum update virtualizor

Команды исправления

AlmaLinux / CloudLinux / Rocky Linux

yum update virtualizor
# Or in the admin panel: Config → Check for Updates → Update Now

Что это значит по лицензии SharedLicense

Your SharedLicense Virtualizor license itself is not affected — this is a vulnerability in Virtualizor, not in licensing. Licenses continue to work during and after the update; there is no need to re-issue or re-activate anything. If you resell under your own brand, patch client servers too — unpatched installs put your reputation at risk, not your license.

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.

Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-43643

Часто задаваемые вопросы

What is 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. Affected versions: before 3.2.9 (Patch 9). Fixed in 3.2.9 (Patch 9).
Is CVE-2026-43643 being exploited in the wild?
No confirmed public exploitation has been announced at the time of writing. With a CVSS base score of 7.5, apply the update on your next maintenance window and watch the vendor advisory for changes.
How do I fix CVE-2026-43643?
yum update virtualizor. Or in the admin panel: Config → Check for Updates → Update Now.
Which versions are affected?
Affected: before 3.2.9 (Patch 9). Update to 3.2.9 (Patch 9) or later.

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