Blind SQL Injection in Control Web Panel Affects Web Management Services

CVE-2026-57517

What is CVE-2026-57517?

CVE-2026-57517 is a serious vulnerability found in Control Web Panel (CWP), a popular web management service that enables users to manage their servers easily. Specifically, this vulnerability is classified as a blind SQL injection, which occurs due to improper sanitization of user inputs. By exploiting this flaw, unauthenticated remote attackers can send malicious data through the userRes POST parameter, allowing them to execute arbitrary SQL queries on the server's database. This poses a significant risk, as the attackers can leverage the MySQL root privileges gained through the injection to interact directly with the database. This capability can lead to the writing of arbitrary files using the INTO DUMPFILE command, potentially enabling the deployment of webshells that grant attackers remote code execution under the cwpsvc account, thus gaining full control over affected systems.

Potential impact of CVE-2026-57517

1. Remote Code Execution: Attackers can deploy webshells on the server, allowing them to execute arbitrary commands remotely, which could lead to a complete system takeover.

2. Data Breach and Loss: By executing arbitrary SQL queries, attackers can gain unauthorized access to sensitive data stored in the database, potentially compromising confidential information, customer data, and critical business assets.

3. Increased Attack Surface: The presence of this vulnerability raises the chances of further exploits and attacks against the system, as attackers can establish a foothold, perform lateral movement, and introduce additional malware, including ransomware.

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