CVE-2025-5435 is a SQL Injection vulnerability identified in Marwal Infotech CMS version 1.0, specifically within the /page.php file. The vulnerability arises from improper sanitization or validation of the 'ID' parameter, which can be manipulated by an attacker to inject malicious SQL commands. This flaw allows an unauthenticated remote attacker to execute arbitrary SQL queries on the backend database without any user interaction or privileges. The vulnerability has been publicly disclosed, and although no known exploits are currently observed in the wild, the availability of exploit details increases the risk of exploitation. The vendor has not responded to notifications regarding this issue, and no patches or mitigations have been released. The CVSS v4.0 score is 6.9, indicating a medium severity level, reflecting the network attack vector, low complexity, no authentication required, and limited impact on confidentiality, integrity, and availability. The vulnerability could lead to unauthorized data access, data modification, or potentially database compromise depending on the backend database privileges and structure. Since the affected CMS is version 1.0, it is likely an early or legacy product, which may still be in use in some organizations. The lack of vendor response and patch availability increases the urgency for organizations to implement compensating controls or consider migration strategies.

For European organizations using Marwal Infotech CMS 1.0, this vulnerability poses a significant risk to the confidentiality and integrity of their web application data. Exploitation could lead to unauthorized disclosure of sensitive information, including customer data, internal documents, or credentials stored in the database. Data tampering or deletion could disrupt business operations or damage organizational reputation. Given the remote and unauthenticated nature of the attack, any exposed CMS instance is at risk. This is particularly critical for organizations in regulated sectors such as finance, healthcare, or government, where data breaches can lead to regulatory penalties under GDPR and other compliance frameworks. Additionally, the absence of vendor patches means organizations must rely on internal mitigations, increasing operational overhead. The potential for attackers to leverage this vulnerability as an entry point for further network compromise or lateral movement also elevates the threat level. Overall, the vulnerability could undermine trust in affected organizations' digital services and lead to financial and reputational damage.

Since no official patch is available, European organizations should immediately implement the following practical mitigations: 1) Employ Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection patterns targeting the 'ID' parameter in /page.php requests. 2) Conduct thorough input validation and sanitization at the application level, if source code access is available, to enforce strict type and format checks on the 'ID' parameter. 3) Restrict database user privileges associated with the CMS to the minimum necessary, avoiding elevated permissions that could exacerbate impact. 4) Monitor web server and database logs for suspicious query patterns or repeated failed attempts indicative of exploitation attempts. 5) Consider isolating or decommissioning vulnerable CMS instances if they are not critical or cannot be secured. 6) Plan for migration to a supported and actively maintained CMS platform with robust security controls. 7) Implement network segmentation to limit access to the CMS backend and database servers. 8) Educate IT and security teams about this vulnerability and ensure incident response plans include steps for SQL injection incidents.