CVE-2025-39403 is a high-severity SQL Injection vulnerability (CWE-89) identified in the mojoomla WPAMS product, affecting versions up to 44.0 as of August 17, 2023. This vulnerability arises from improper neutralization of special elements used in SQL commands, allowing an attacker with low privileges (PR:L) to execute unauthorized SQL queries remotely (AV:N) without requiring user interaction (UI:N). The vulnerability impacts the confidentiality of the database, enabling attackers to extract sensitive information (C:H), while the integrity remains unaffected (I:N). The availability impact is low (A:L), indicating limited disruption to service. The scope is changed (S:C), meaning the vulnerability can affect resources beyond the initially vulnerable component. Although no known exploits are currently reported in the wild, the CVSS score of 8.5 underscores the criticality of this issue. The vulnerability is particularly dangerous because it can be exploited remotely over the network with minimal access requirements and no user interaction, making it a prime target for attackers seeking to extract sensitive data from affected WPAMS installations. WPAMS is a Joomla-based product, and the vulnerability likely stems from insufficient input validation or parameterized query usage in its SQL handling routines.

For European organizations using mojoomla WPAMS, this vulnerability poses a significant risk to the confidentiality of their data repositories. Attackers exploiting this flaw could exfiltrate sensitive customer data, intellectual property, or internal configuration details, potentially leading to data breaches and compliance violations under GDPR. The low availability impact suggests limited service disruption, but the confidentiality breach alone can cause reputational damage and financial penalties. Given the remote exploitability and lack of required user interaction, attackers could automate attacks at scale, targeting multiple organizations simultaneously. Sectors such as finance, healthcare, and government agencies in Europe, which often rely on Joomla-based CMS solutions and related plugins, could be particularly vulnerable if WPAMS is deployed. The changed scope indicates that the attack could affect other components or databases connected to the vulnerable system, amplifying the potential damage.

Organizations should immediately audit their WPAMS installations to identify affected versions (up to 44.0). Since no patch links are currently available, it is critical to implement temporary mitigations such as: 1) Restricting network access to the WPAMS management interfaces to trusted IP addresses only. 2) Employing Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection patterns targeting WPAMS endpoints. 3) Reviewing and hardening database user permissions to minimize data exposure in case of compromise. 4) Monitoring logs for unusual SQL query patterns or access attempts indicative of exploitation attempts. 5) Engaging with mojoomla or the Joomla community for updates or patches and applying them promptly once released. Additionally, organizations should consider code reviews or employing security scanners to detect and remediate unsafe SQL query constructions within WPAMS or custom extensions.