WordPress Plugin Vulnerability Exposes Sites to Remote Code Execution
A critical vulnerability in the Everest Forms Pro plugin for WordPress has been identified, allowing unauthenticated attackers to execute remote code and potentially take over affected websites. The flaw, tracked as CVE-2026-3300, has a severity score of 9.8 on the CVSS scale and affects all versions up to 1.9.12. The vulnerability was discovered by a researcher known as h0xilo and reported to Wordfence's bug bounty program. The issue arises from the plugin's Calculation add-on, which improperly sanitizes input, allowing attackers to inject PHP code. Wordfence has reported over 29,300 blocked exploit attempts, with a significant surge on May 16, 2026. WPEverest, the plugin's developer, has released a patch in version 1.9.13, urging users to update immediately to protect their sites.