CVE-2026-2112 identifies a Cross-Site Request Forgery (CSRF) vulnerability in the Dam Spam plugin for WordPress, affecting all versions up to and including 1.0.8. The vulnerability stems from the absence of nonce verification on the pending comment deletion action within the plugin's cleanup page. Nonces are security tokens used to validate that a request originates from an authorized user and context. Without this protection, an attacker can craft a malicious link or webpage that, when visited by an administrator logged into the WordPress dashboard, triggers the deletion of all pending comments without the admin's explicit consent. This attack does not require the attacker to be authenticated, but it does require the administrator to interact with the malicious content (user interaction). The vulnerability impacts the integrity of the comment moderation process by allowing unauthorized deletion of pending comments, potentially disrupting site operations and user engagement. The CVSS v3.1 base score is 4.3, reflecting a medium severity level due to the low complexity of attack and lack of required privileges, but limited impact scope (no confidentiality or availability impact). No public exploits have been reported yet, but the vulnerability is published and should be addressed promptly. The plugin is developed by webguyio and widely used in WordPress environments for spam comment management. The lack of nonce verification is a common security oversight in WordPress plugin development, emphasizing the need for secure coding practices. This vulnerability highlights the importance of validating all state-changing requests with anti-CSRF tokens to prevent unauthorized actions via forged requests.

For European organizations, the primary impact of this vulnerability is the potential disruption of comment moderation workflows on WordPress sites using the Dam Spam plugin. Unauthorized deletion of all pending comments can lead to loss of user-generated content awaiting approval, which may affect community engagement, customer feedback channels, and content management processes. While the vulnerability does not compromise confidential data or site availability, it undermines data integrity and could be exploited as part of a broader social engineering or phishing campaign targeting site administrators. Organizations relying on WordPress for customer interaction, marketing, or support may experience operational inconvenience and reputational damage if comment moderation is disrupted. Additionally, attackers could leverage this vulnerability to remove legitimate comments, potentially censoring feedback or manipulating public perception. Given the ease of exploitation via user interaction and no authentication requirement, the risk is heightened in environments where administrators are less aware of phishing or social engineering tactics. The absence of known exploits reduces immediate risk but does not eliminate the threat, especially as exploit code could emerge. European entities with public-facing WordPress sites should prioritize mitigation to maintain trust and operational continuity.

1. Apply patches or updates from the Dam Spam plugin vendor as soon as they become available to address the CSRF vulnerability. 2. If no patch is available, implement manual nonce verification on all state-changing actions within the plugin code, particularly the pending comment deletion functionality. 3. Educate WordPress administrators and site managers about the risks of phishing and social engineering attacks, emphasizing caution when clicking on unsolicited links while logged into administrative accounts. 4. Employ web application firewalls (WAFs) with rules designed to detect and block CSRF attack patterns targeting WordPress admin endpoints. 5. Limit administrative access to trusted networks or use VPNs to reduce exposure to external CSRF attempts. 6. Regularly audit installed plugins for security compliance and remove or replace plugins that do not follow secure coding practices. 7. Implement multi-factor authentication (MFA) for WordPress admin accounts to reduce the risk of compromised credentials facilitating further attacks. 8. Monitor logs for unusual comment deletion activity to detect potential exploitation attempts early. 9. Encourage plugin developers to adopt secure development lifecycle practices, including mandatory nonce verification for all sensitive actions.