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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://www.virtualizor.com/blog/virtualizor-3-2-9-launched-release-candidate-p…
disclosure@vulncheck.com
https://www.virtualizor.com/blog/virtualizor-3-3-0/
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/softaculous-virtualizor-authorization-bypa…
disclosure@vulncheck.com
https://www.vulncheck.com/blog/virtualizor-billing-hook-unauthenticated-root-rce
disclosure@vulncheck.com