CVE-2025-14356 is an authorization bypass vulnerability classified under CWE-639 (Authorization Bypass Through User-Controlled Key) found in the Ultra Addons for Contact Form 7 plugin for WordPress, developed by themefic. The vulnerability exists due to a missing capability check in the 'uacf7_get_generated_pdf' function, which is responsible for generating PDF documents of form submissions. This flaw allows any authenticated user with at least Subscriber-level privileges to invoke this function and retrieve PDFs of submitted form data, provided that the 'PDF Generator' and 'Database' addons are enabled. These addons are disabled by default, reducing the attack surface unless explicitly activated. The vulnerability does not require user interaction and can be exploited remotely over the network. The CVSS v3.1 base score is 4.3 (medium severity), reflecting low impact on confidentiality (limited to data exposure), no impact on integrity or availability, low attack complexity, and requiring low privileges but no user interaction. No patches or fixes have been published at the time of disclosure, and no known exploits are reported in the wild. The vulnerability primarily threatens the confidentiality of form submission data, which may include personally identifiable information or other sensitive content, potentially leading to data leakage or privacy violations. Organizations using this plugin in environments where multiple user roles exist and where form data is sensitive should be particularly cautious. The vulnerability highlights the importance of proper capability checks in WordPress plugin functions that expose sensitive data.

For European organizations, this vulnerability poses a risk of unauthorized disclosure of sensitive data collected via Contact Form 7 forms, such as personal information, customer inquiries, or other confidential submissions. Since the exploit requires only Subscriber-level access, attackers could leverage compromised or low-privilege accounts to extract data without detection. This could lead to violations of GDPR and other data protection regulations, resulting in legal and financial consequences. The impact is more severe for organizations handling sensitive or regulated data through web forms, including healthcare providers, financial institutions, and government agencies. Public-facing WordPress sites with multiple user roles are at higher risk. Although the vulnerability does not affect system integrity or availability, the confidentiality breach could damage organizational reputation and customer trust. The lack of a patch increases exposure time, emphasizing the need for immediate mitigation. European entities relying heavily on WordPress for digital services, especially those using the Ultra Addons plugin with enabled PDF and Database addons, should prioritize addressing this issue to prevent data leakage.

1. Immediately verify if the 'PDF Generator' and 'Database' addons of the Ultra Addons for Contact Form 7 plugin are enabled; if not required, disable them to eliminate the attack vector. 2. Restrict Subscriber-level user capabilities by reviewing and tightening role permissions to minimize unnecessary access to plugin functions. 3. Monitor WordPress user accounts for suspicious activity or unauthorized access, especially focusing on low-privilege accounts. 4. Implement web application firewalls (WAF) with custom rules to detect and block unauthorized attempts to access the 'uacf7_get_generated_pdf' function or related endpoints. 5. Regularly audit installed plugins and their configurations to ensure adherence to the principle of least privilege. 6. Stay alert for official patches or updates from themefic and apply them promptly once available. 7. Consider implementing additional logging and alerting on PDF generation requests to detect potential exploitation attempts. 8. Educate site administrators and developers about the risks of enabling optional addons that increase attack surface without proper access controls.