CVE-2025-7690 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the Affiliate Plus plugin for WordPress, developed by mindnl. This vulnerability exists in all versions up to and including 1.3.2 due to missing or incorrect nonce validation on the 'affiplus_settings' page. Nonces are security tokens used to verify that requests originate from legitimate users and not from malicious third parties. The absence or improper implementation of nonce validation allows an attacker to craft a malicious link or webpage that, when visited by an authenticated site administrator, can trigger unauthorized actions on the vulnerable WordPress site without the administrator's explicit consent. The vulnerability requires user interaction in the form of the administrator clicking a crafted link or visiting a malicious page. The CVSS v3.1 base score is 6.1 (medium severity), reflecting that the attack vector is network-based (remote), requires no privileges, but does require user interaction. The impact affects confidentiality and integrity, allowing unauthorized changes to settings or data managed by the Affiliate Plus plugin, but does not affect availability. No known exploits are currently reported in the wild, and no patches have been linked yet. Given the plugin’s role in managing affiliate marketing settings, unauthorized changes could lead to fraudulent affiliate commissions, data leakage, or manipulation of affiliate tracking, potentially harming business operations and trust.

For European organizations using WordPress sites with the Affiliate Plus plugin, this vulnerability poses a moderate risk. Unauthorized changes to affiliate marketing configurations could result in financial losses through fraudulent affiliate payouts or compromised marketing data integrity. Confidential business information related to affiliate programs could be exposed or manipulated, impacting competitive positioning and compliance with data protection regulations such as GDPR. Since the attack requires an administrator to be tricked into clicking a malicious link, targeted phishing campaigns could be used to exploit this vulnerability, especially in sectors with high reliance on affiliate marketing (e.g., e-commerce, digital services). The integrity of marketing data and business processes could be undermined, leading to reputational damage and potential regulatory scrutiny if personal data is involved. However, the lack of availability impact and the requirement for user interaction somewhat limit the scope of damage.

European organizations should immediately audit their WordPress installations to identify the presence of the Affiliate Plus plugin and its version. Until an official patch is released, administrators should implement compensating controls such as: 1) Restricting administrative access to trusted networks and devices to reduce exposure to phishing attacks. 2) Educating administrators about the risks of clicking unsolicited links and implementing strict email filtering to reduce phishing attempts. 3) Employing web application firewalls (WAFs) with custom rules to detect and block suspicious requests targeting the 'affiplus_settings' page. 4) Monitoring logs for unusual administrative actions or configuration changes within the plugin. 5) Temporarily disabling or removing the Affiliate Plus plugin if it is not critical to operations. 6) Applying the principle of least privilege by limiting the number of users with administrative rights. Once a patch is available, organizations should prioritize prompt updating of the plugin. Additionally, implementing multi-factor authentication (MFA) for WordPress admin accounts can reduce the risk of account compromise that could exacerbate exploitation.