CVE-2025-49263 is a high-severity SQL Injection vulnerability affecting the WC Vendors Marketplace plugin, a popular e-commerce solution for WordPress that enables multi-vendor marketplace functionality. The vulnerability arises from improper neutralization of special elements in SQL commands, classified under CWE-89. Specifically, this flaw allows an attacker with high privileges (PR:H) but no user interaction (UI:N) to perform Blind SQL Injection attacks remotely over the network (AV:N). The vulnerability impacts all versions up to and including 2.5.6 of the WC Vendors Marketplace plugin. The CVSS v3.1 base score is 7.6, reflecting a high severity due to the potential for significant confidentiality impact (C:H), limited availability impact (A:L), and no integrity impact (I:N). The scope is changed (S:C), indicating that exploitation can affect resources beyond the initially vulnerable component. Exploitation requires authenticated access, which means the attacker must have a valid account with sufficient privileges within the WordPress environment. Blind SQL Injection allows attackers to extract sensitive data from the backend database by sending crafted queries and inferring results based on the application's responses, even when direct error messages are not returned. Although no known exploits are currently in the wild, the vulnerability's nature and high CVSS score suggest it could be leveraged for data exfiltration or further compromise of the hosting environment if exploited. No official patches or fixes have been linked yet, indicating that mitigation may currently rely on workarounds or access control measures.

For European organizations using WC Vendors Marketplace, this vulnerability poses a significant risk to the confidentiality of sensitive data stored in their e-commerce databases, including customer information, transaction records, and vendor details. Given the GDPR regulatory environment in Europe, any data breach resulting from exploitation could lead to severe legal and financial penalties. The requirement for authenticated access somewhat limits the attack surface but does not eliminate risk, especially if user accounts are compromised or if privilege escalation is possible. The Blind SQL Injection could be used to extract personal data stealthily, undermining trust and potentially causing reputational damage. Additionally, the changed scope of the vulnerability means that exploitation could affect other components or data stores connected to the vulnerable plugin, increasing the potential impact. Availability impact is low but could still disrupt marketplace operations temporarily if the database is manipulated or locked during an attack. Overall, the threat is particularly relevant for mid to large-sized European e-commerce businesses relying on WC Vendors Marketplace for multi-vendor capabilities.

1. Immediate mitigation should focus on restricting access to the WC Vendors Marketplace plugin by enforcing strict role-based access controls to limit authenticated user privileges only to trusted personnel. 2. Monitor and audit user activities within the WordPress admin panel to detect unusual or suspicious behavior that could indicate exploitation attempts. 3. Employ Web Application Firewalls (WAFs) with custom rules designed to detect and block SQL Injection patterns targeting the plugin’s endpoints. 4. Regularly back up the database and test restoration procedures to minimize downtime and data loss in case of an incident. 5. Engage with the WC Vendors vendor or community to obtain or request an official patch; apply it promptly once available. 6. Consider temporarily disabling or replacing the WC Vendors Marketplace plugin with alternative solutions if patching is delayed and risk is unacceptable. 7. Harden the underlying WordPress installation by keeping core, themes, and plugins up to date, and by disabling unnecessary features or endpoints that could be leveraged in chained attacks. 8. Conduct penetration testing focused on the plugin to identify any additional injection points or weaknesses.