CVE-2019-25535

Vulnerability

Overview The vulnerability is a SQL injection in the Email parameter of loginaction.php in Netartmedia PHP Dating Site. The application fails to sanitize user input before using it in SQL queries, allowing an unauthenticated attacker to inject arbitrary SQL commands [1]. The injection is time-based, meaning the attacker can infer information by observing response delays.

Exploitation

An attacker can send a POST request to loginaction.php with a crafted Email parameter. The exploit payload from [2] uses an XOR-based time-based injection: Email=0'XOR(if(now()=sysdate()%2Csleep(0)%2C0))XOR'Z. This payload causes a delay if the condition is true, enabling blind extraction of data. No authentication is required, and the attack can be performed remotely over HTTP.

Impact

Successful exploitation allows an attacker to extract sensitive information from the database, such as user credentials, personal data, or other stored information. The CVSS v3 score of 8.2 (High) reflects the potential for high confidentiality impact with low attack complexity [1].

Mitigation

As of the publication of this CVE, no official patch has been released by Netartmedia. Users are advised to apply input validation and parameterized queries to mitigate the risk. The vulnerability is listed in the Exploit Database [2], indicating public exploit code availability.