ChanCMS SQL Injection Vulnerability in Search Functionality

A SQL injection vulnerability has been identified in ChanCMS versions through 3.3.1. The issue arises in the '/cms/collect/search' interface, where the 'keyword' argument can be manipulated to execute arbitrary SQL commands. This vulnerability can be exploited remotely, and a public proof-of-concept exploit is available.

Impact

Exploitation of this vulnerability allows for SQL injection, where an attacker can interfere with the application's database queries. This could lead to unauthorized data access, data manipulation, or in some cases, executing administrative operations on the database.

Reproduction

To reproduce this vulnerability, send a request to the '/cms/article/search' endpoint with a crafted 'keyword' parameter that includes SQL injection payloads. The injected SQL code will be executed by the application's database, demonstrating the vulnerability.