CVE-2026-29811 in CyberPanel
Summary
by MITRE • 09/13/2026
CyberPanel before 2.4.4 attempts to detect an "alais" domain (i.e., a second domain that serves the same content as a primary domain; normally spelled "alias") via an ORM query filter rather than a Python "if" statement.
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Analysis
by VulDB Data Team • 09/13/2026
The vulnerability in CyberPanel versions prior to 2.4.4 stems from an improper implementation of input validation logic within its domain alias management subsystem. Specifically, the application attempts to identify whether a provided domain string constitutes an alias for an existing primary domain by executing a database query through an Object-Relational Mapping (ORM) filter rather than utilizing standard Python conditional statements or local data structures. This architectural choice introduces significant security risks because it exposes internal logic directly to user-supplied input without adequate sanitization, creating conditions ripe for SQL injection attacks. By relying on the ORM layer to process untrusted domain names as query parameters, the application inadvertently allows attackers to manipulate the underlying database queries through specially crafted inputs that exploit how the framework interprets filter arguments.
From a technical perspective, this flaw represents a classic case of insecure direct object references combined with potential SQL injection vectors depending on the specific ORM implementation and backend database used. When an attacker supplies a domain name containing malicious payload characters such as quotes or semicolons, these inputs are passed directly into the query construction process. If the ORM does not properly parameterize these values or if there is a flaw in how it escapes special characters within filter expressions, the resulting SQL statement may be altered to perform unauthorized operations. This could allow an attacker to read sensitive data from other tables, modify existing records, or potentially execute administrative commands on the database server, thereby compromising the integrity and confidentiality of the entire hosting environment managed by CyberPanel.
The operational impact of this vulnerability is severe for any organization relying on CyberPanel for web hosting management. Successful exploitation could lead to unauthorized access to customer data, including email credentials, website files, and configuration settings stored in the backend database. Furthermore, an attacker with sufficient privileges might escalate their access to gain control over the underlying server infrastructure by leveraging the database engine's capabilities to write shell code or execute system commands. This compromises not only the specific domain being targeted but potentially all domains hosted on the same instance, leading to widespread service disruption and data breaches affecting multiple clients.
This issue aligns with CWE-89, which describes Improper Neutralization of Special Elements used in an SQL Command, as well as CWE-20 regarding improper input validation where user-supplied data is not sufficiently checked before being processed by critical system functions. In terms of the MITRE ATT&CK framework, this vulnerability facilitates techniques related to Database Query Injection and potentially Data Exfiltration if successful exploitation occurs. The reliance on ORM filters for security-critical logic checks rather than explicit application-level validation highlights a common pitfall in web development where developers assume that framework abstractions provide complete protection against injection attacks without understanding the underlying mechanics of query construction.
To mitigate this vulnerability, administrators must upgrade CyberPanel to version 2.4.4 or later, where the domain alias detection logic has been corrected to use safe Python conditional statements instead of database queries for validation purposes. This change ensures that input is processed locally within the application layer before any interaction with the database occurs, thereby eliminating the attack surface associated with SQL injection via ORM filters. Additionally, organizations should implement defense-in-depth strategies by deploying Web Application Firewalls configured to detect and block common SQL injection patterns in domain-related parameters. Regular security audits of custom scripts or plugins integrated into CyberPanel are also recommended to ensure that similar architectural flaws do not exist elsewhere in the application stack.