CVE-2025-39510 is a high-severity SQL Injection vulnerability classified under CWE-89, affecting the ValvePress Pinterest Automatic Pin plugin. SQL Injection vulnerabilities arise when user-supplied input is improperly neutralized before being included in SQL queries, allowing attackers to manipulate the database queries executed by the application. In this case, the vulnerability allows an attacker with low privileges (PR:L) and no user interaction (UI:N) to remotely exploit the flaw over the network (AV:N). The CVSS vector indicates that the attack complexity is low (AC:L), and the scope is changed (S:C), meaning the vulnerability can affect resources beyond the initially vulnerable component. The impact is high on confidentiality (C:H), with no impact on integrity (I:N), and low impact on availability (A:L). This suggests that an attacker can extract sensitive data from the database but cannot modify data or cause significant denial of service. The vulnerability affects an unspecified range of versions of the Pinterest Automatic Pin plugin by ValvePress, with no patch currently available and no known exploits in the wild as of the publication date (August 14, 2025). The lack of version specifics complicates immediate mitigation but highlights the need for urgent review and remediation. The vulnerability likely stems from insufficient input validation or parameterized query usage in the plugin's code handling Pinterest pin automation features, which may be integrated into WordPress or similar CMS platforms. Exploitation could lead to unauthorized disclosure of sensitive information stored in the backend database, such as user credentials, configuration data, or other private content managed by the plugin.

For European organizations using the ValvePress Pinterest Automatic Pin plugin, this vulnerability poses a significant risk of data breach due to unauthorized access to confidential information. Given the high confidentiality impact, attackers could exfiltrate sensitive user data, potentially violating GDPR and other stringent data protection regulations in Europe, leading to legal and financial consequences. The scope change indicates that the attack could compromise other parts of the system beyond the plugin itself, increasing the risk of lateral movement within the network. Although the integrity and availability impacts are low, the exposure of confidential data alone is critical for organizations handling personal or proprietary information. Marketing, e-commerce, and media companies that rely on Pinterest automation for social media engagement are particularly at risk. The absence of known exploits currently reduces immediate threat but does not eliminate the risk, as attackers may develop exploits rapidly once the vulnerability is public. The lack of patches necessitates proactive risk management to prevent exploitation.

European organizations should immediately audit their use of the ValvePress Pinterest Automatic Pin plugin and consider disabling it until a patch is available. Implementing Web Application Firewalls (WAFs) with SQL Injection detection and prevention rules can provide a temporary protective layer. Conduct thorough input validation and ensure that all database queries use parameterized statements or prepared statements to prevent injection. Monitoring database query logs for anomalous patterns indicative of injection attempts is recommended. Organizations should also review user privilege assignments to minimize the impact of compromised accounts, ensuring least privilege principles are enforced. Regular backups of databases should be maintained to enable recovery in case of exploitation. Engage with ValvePress or plugin maintainers to obtain updates or patches promptly. Additionally, organizations should perform penetration testing focused on SQL Injection vectors in their web applications to identify and remediate similar vulnerabilities proactively.