CVE-2025-62915 identifies a missing authorization vulnerability in the SMS Contact Form 7 Notifications plugin by ClickSend, specifically affecting versions up to and including 1.4.0. This plugin integrates SMS notification capabilities into WordPress sites using the Contact Form 7 plugin, allowing form submissions to trigger SMS alerts. The vulnerability arises from incorrectly configured access control mechanisms, enabling attackers with low privileges (e.g., authenticated users with minimal rights) to bypass authorization checks. This flaw permits unauthorized sending of SMS notifications, potentially leading to information disclosure or manipulation of notification content. The CVSS 3.1 base score is 8.1, reflecting a network attack vector (AV:N), low attack complexity (AC:L), requiring privileges (PR:L) but no user interaction (UI:N), with unchanged scope (S:U), and high impact on confidentiality and integrity (C:H/I:H), while availability remains unaffected (A:N). No public exploits are currently known, but the vulnerability's nature suggests it could be leveraged for phishing, spam, or social engineering attacks by sending unauthorized messages. The plugin's role in critical communications makes this vulnerability particularly concerning for organizations relying on SMS alerts for operational or security notifications. The issue was reserved on October 24, 2025, and published on October 27, 2025, with no patch links yet available, indicating that remediation is pending. The vulnerability affects WordPress sites using this plugin, which is popular in various regions, including Europe.

For European organizations, the impact of CVE-2025-62915 can be significant, especially for those using WordPress with the SMS Contact Form 7 Notifications plugin to manage customer communications, alerts, or internal notifications. Unauthorized SMS sending can lead to leakage of sensitive information, manipulation of message content, and reputational damage if attackers send fraudulent or misleading messages. This could facilitate phishing campaigns, social engineering attacks, or unauthorized disclosure of personal data, potentially violating GDPR and other data protection regulations. The integrity of communication channels is compromised, undermining trust in automated notification systems. Although availability is not directly impacted, the indirect effects on business operations and compliance can be substantial. Organizations in sectors such as finance, healthcare, and government, which often rely on SMS for multi-factor authentication or critical alerts, face heightened risks. The lack of known exploits in the wild provides a window for proactive mitigation, but the high CVSS score underscores the urgency of addressing this vulnerability.

1. Monitor official ClickSend and WordPress plugin repositories for security updates and apply patches immediately once available. 2. Until a patch is released, restrict access to WordPress admin interfaces to trusted IP addresses and enforce strong authentication mechanisms, including multi-factor authentication. 3. Review and tighten user role permissions within WordPress to minimize the number of users with privileges that could exploit this vulnerability. 4. Implement network-level controls such as web application firewalls (WAFs) to detect and block suspicious requests targeting the vulnerable plugin endpoints. 5. Audit SMS sending logs for unusual or unauthorized activity to detect potential exploitation attempts early. 6. Educate staff and users about the risks of phishing and social engineering attacks that could leverage unauthorized SMS messages. 7. Consider temporarily disabling the SMS Contact Form 7 Notifications plugin if SMS functionality is not critical, until a secure version is available. 8. Conduct regular security assessments and penetration testing focusing on WordPress plugins and their access control configurations.