ChanCMS SQL Injection Vulnerability in Article Search Functionality

A SQL injection vulnerability has been identified in ChanCMS versions prior to 3.3.1. The issue arises in the article search feature, where the 'keyword' parameter can be manipulated to execute arbitrary SQL commands. This vulnerability can be exploited remotely, and a 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 injection can be verified by observing the application's response, which may indicate successful execution of the injected SQL code.