CVE-2025-5673 identifies a SQL Injection vulnerability in the pr-gateway Blog2Social: Social Media Auto Post & Scheduler WordPress plugin, present in all versions up to and including 8.4.4. The vulnerability stems from improper neutralization of special elements in the 'prgSortPostType' parameter, which is insufficiently escaped before being incorporated into SQL queries. This flaw allows authenticated attackers with Subscriber-level privileges or higher to append arbitrary SQL commands to existing queries. Because the plugin does not adequately prepare or sanitize this input, attackers can exploit this to extract sensitive data from the underlying database, such as user credentials, configuration details, or other confidential information. The attack vector is network-based, requiring authentication but no user interaction, and the scope is limited to installations running the vulnerable plugin. While no public exploits have been reported yet, the vulnerability's presence in a popular WordPress plugin used for social media automation increases its attractiveness to attackers. The CVSS v3.1 score of 6.5 reflects a medium severity rating, with high confidentiality impact but no integrity or availability impact. The vulnerability was publicly disclosed on June 17, 2025, and assigned CWE-89, which covers improper neutralization of SQL commands.

The primary impact of this vulnerability is unauthorized disclosure of sensitive information stored in the WordPress database. Attackers with minimal privileges (Subscriber-level) can escalate their access to extract data beyond their authorization, potentially compromising user data, site configuration, and other confidential information. This can lead to privacy violations, data breaches, and reputational damage for affected organizations. Since the vulnerability does not affect data integrity or availability, it is less likely to cause direct service disruption or data manipulation. However, the exposure of sensitive data can facilitate further attacks such as credential theft, privilege escalation, or targeted phishing campaigns. Organizations relying on the Blog2Social plugin for social media management may face increased risk, especially if they have not implemented strict access controls or monitoring. The widespread use of WordPress globally means that many organizations, from small businesses to large enterprises, could be affected, particularly those in sectors where social media presence is critical.

To mitigate this vulnerability, organizations should first check for and apply any official patches or updates released by the plugin vendor once available. In the absence of patches, administrators should consider disabling or uninstalling the Blog2Social plugin temporarily to eliminate the attack surface. Implement strict role-based access control to limit Subscriber-level users' ability to interact with vulnerable plugin features. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious SQL injection patterns targeting the 'prgSortPostType' parameter. Conduct thorough input validation and sanitization on all user-supplied data within custom code or plugin extensions. Regularly audit user privileges and monitor database query logs for anomalous activity indicative of injection attempts. Additionally, maintain regular backups and ensure that WordPress core, themes, and plugins are kept up to date to reduce exposure to known vulnerabilities. Educate users about the risks of privilege misuse and enforce strong authentication mechanisms to reduce the likelihood of compromised accounts.