CVE-2026-25863 | BDVDB-2026-330307 Detail

Description#

Conditional Fields for Contact Form 7 WordPress plugin through version 2.7.2 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.

Impact#

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Exploit#

History#

1. Version 12026-05-04Record published in the CVE List.
2. Version 22026-05-25Most recent update recorded in the CVE List.