CVE-2025-53309: 
WordPress vulnerability analysis and mitigation

CVE-2025-53309 is a sensitive data exposure vulnerability discovered in the WordPress plugin 'Accept Stripe Payments Using Contact Form 7' affecting versions up to 3.0. The vulnerability was discovered by Martino Spagnuolo (r3verii) on May 29, 2025, and was publicly disclosed on June 27, 2025. This security issue allows unauthorized users to retrieve embedded sensitive data from the application (Patchstack).

The vulnerability is classified as an Insertion of Sensitive Information Into Sent Data (CWE-201) issue. It has been assigned a CVSS v3.1 base score of 5.3 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. The vulnerability can be exploited without authentication, indicating a lower barrier to exploitation (NVD, Patchstack).

The vulnerability could allow malicious actors to view sensitive information that is normally not available to regular users. This exposed data could potentially be used to exploit other weaknesses in the system (Patchstack).

The vulnerability has been fixed in version 3.1 of the Accept Stripe Payments Using Contact Form 7 plugin. Users are advised to update to version 3.1 or later to remove the vulnerability. Patchstack users can enable auto-update for vulnerable plugins as an additional security measure (Patchstack).