CVE-2025-29084 is a SQL Injection vulnerability identified in CSZ-CMS version 1.3.0, specifically within the execSqlFile function located in the Upgrade.php file. This vulnerability allows a remote attacker to inject malicious SQL code through the input parameters processed by the execSqlFile function, which is presumably used during the upgrade or update process of the CMS. Exploitation of this flaw could enable the attacker to execute arbitrary code on the underlying database server or potentially on the hosting system itself, depending on the database permissions and environment configuration. The vulnerability arises from insufficient input validation or sanitization in the execSqlFile function, allowing crafted SQL statements to be executed. Although no known exploits are currently reported in the wild, the nature of SQL Injection vulnerabilities makes this a significant risk, as attackers can leverage it to extract sensitive data, modify or delete data, escalate privileges, or execute system commands if the database user has such permissions. The lack of a CVSS score indicates that the vulnerability has not yet been fully assessed or scored, but the technical details confirm it is a critical injection flaw in a CMS component that is often exposed to the internet and used for managing website content and upgrades.

For European organizations using CSZ-CMS version 1.3.0, this vulnerability poses a serious threat to the confidentiality, integrity, and availability of their web applications and underlying data. Successful exploitation could lead to unauthorized data disclosure, including personal data protected under GDPR, which could result in regulatory penalties and reputational damage. Integrity of website content and backend data could be compromised, potentially allowing attackers to deface websites, inject malicious content, or disrupt business operations. Availability could also be affected if attackers delete or corrupt critical data or disrupt the CMS upgrade process. Given that many European organizations rely on CMS platforms for their web presence, this vulnerability could be exploited to target government, healthcare, financial, or other critical sectors, amplifying the potential impact. The remote nature of the attack vector means that attackers do not require local access, increasing the risk of widespread exploitation if the vulnerability is not promptly addressed.

European organizations should immediately audit their use of CSZ-CMS and identify any installations running version 1.3.0. Since no patch links are currently available, organizations should consider the following specific mitigations: 1) Restrict access to the Upgrade.php file and related upgrade functionalities to trusted administrators only, ideally through network segmentation or IP whitelisting. 2) Implement Web Application Firewalls (WAFs) with custom rules to detect and block SQL Injection attempts targeting the execSqlFile function or suspicious SQL payloads. 3) Conduct thorough input validation and sanitization on all parameters passed to the execSqlFile function, if source code modifications are possible. 4) Monitor logs for unusual database queries or errors indicative of injection attempts. 5) Prepare for rapid patch deployment once an official fix is released by the vendor. 6) Consider temporary disabling or restricting upgrade features until the vulnerability is remediated. 7) Educate IT and security teams about this vulnerability to ensure timely detection and response.