Report: CVE-2026-25863 - Conditional Fields for Contact Form 7 < 2.7.3 DoS via Uncontrolled Resource Cons

Report: CVE-2026-25863 - Conditional Fields for Contact Form 7 < 2.7.3 DoS via Uncontrolled Resource Cons

CVE ID :CVE-2026-25863 Published : May 4, 2026, 7:16 p.m. | 57 minutes ago Description :Conditional Fields for Contact Form 7 WordPress plugin through version 2.6.7 contains an uncontrolled resource consumption vulnerability in the Wpcf7cfMailParser class where the hide_hidden_mail_fields_regex_callback() method reads an iteration count directly from user-supplied POST parameters without validation or upper bound enforcement. Unauthenticated attackers can supply an arbitrarily large integer value through the REST API endpoint to cause unbounded loop execution with multiple preg_replace() operations, exhausting server memory and crashing the PHP process. Severity: 8.7 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
HIGH
Published
May 4, 2026
Affected Product: WordPress