CVE-2025-12646 is a SQL Injection vulnerability identified in the Community Events plugin for WordPress, developed by jackdewey. This vulnerability exists in all versions up to and including 1.5.4 due to insufficient escaping and lack of proper preparation of the 'dayofyear' parameter in SQL queries. Specifically, the plugin fails to neutralize special characters in the user-supplied 'dayofyear' input, allowing attackers to append arbitrary SQL commands to the existing query. This flaw can be exploited remotely by unauthenticated attackers without any user interaction, as the vulnerable parameter is accessible via HTTP requests. Successful exploitation can lead to unauthorized disclosure of sensitive information stored in the backend database, such as user data, configuration details, or other confidential content. The vulnerability is tracked under CWE-89, which covers improper neutralization of special elements used in SQL commands. Although no public exploits have been reported yet, the vulnerability's characteristics—network exploitable, no authentication required, and high confidentiality impact—make it a critical concern for WordPress sites using this plugin. The CVSS v3.1 base score is 7.5, reflecting the ease of exploitation and the potential data exposure. No patches were linked at the time of reporting, so users must monitor for updates or implement workarounds.

For European organizations, the primary impact of CVE-2025-12646 is the potential unauthorized disclosure of sensitive data stored in WordPress databases. This can include personal identifiable information (PII), event details, user credentials, or other confidential business information. Such data breaches can lead to regulatory non-compliance under GDPR, resulting in legal penalties and reputational damage. Since the vulnerability does not affect data integrity or availability, the threat is focused on confidentiality loss. However, attackers could leverage extracted information for further attacks, such as phishing or privilege escalation. Organizations running community event websites or public-facing platforms using the Community Events plugin are particularly vulnerable. The ease of exploitation without authentication increases the risk of automated scanning and mass exploitation attempts. This vulnerability could also undermine trust in digital services and community engagement platforms, which are vital in many European sectors including education, local government, and non-profits.

1. Immediate action should be to monitor the official jackdewey plugin repository and WordPress security advisories for an official patch and apply it as soon as it is released. 2. Until a patch is available, implement web application firewall (WAF) rules to detect and block suspicious SQL injection patterns targeting the 'dayofyear' parameter. 3. Employ input validation and sanitization at the web server or application level to reject or properly escape any unexpected characters in the 'dayofyear' parameter. 4. Restrict access to the vulnerable plugin's endpoints via IP whitelisting or authentication where feasible to reduce exposure. 5. Conduct regular security audits and database monitoring to detect unusual query patterns or data exfiltration attempts. 6. Educate site administrators about the risks of using outdated plugins and encourage timely updates. 7. Consider disabling or replacing the Community Events plugin with a more secure alternative if immediate patching is not possible. 8. Backup databases regularly to ensure recovery in case of compromise.