The Everest Forms Pro plugin for WordPress is vulnerable to Remote Code Execution via PHP Code Injection in all versions up to, and including, 1.9.12. This is due to the Calculation Addon's process_filter() function concatenating user-submitted form field values into a PHP code string without proper escaping before passing it to eval(). The sanitize_text_field() function applied to input does not escape single quotes or other PHP code context characters. This makes it possible for unauthenticated attackers to inject and execute arbitrary PHP code on the server by submitting a crafted value in any string-type form field (text, email, URL, select, radio) when a form uses the "Complex Calculation" feature.
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Fixes
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References
History
Tue, 31 Mar 2026 03:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Everest Forms Pro plugin for WordPress is vulnerable to Remote Code Execution via PHP Code Injection in all versions up to, and including, 1.9.12. This is due to the Calculation Addon's process_filter() function concatenating user-submitted form field values into a PHP code string without proper escaping before passing it to eval(). The sanitize_text_field() function applied to input does not escape single quotes or other PHP code context characters. This makes it possible for unauthenticated attackers to inject and execute arbitrary PHP code on the server by submitting a crafted value in any string-type form field (text, email, URL, select, radio) when a form uses the "Complex Calculation" feature. | |
| Title | Everest Forms Pro <= 1.9.12 - Unauthenticated Remote Code Execution via Calculation Field | |
| Weaknesses | CWE-94 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-03-31T01:24:57.875Z
Reserved: 2026-02-26T20:26:05.469Z
Link: CVE-2026-3300
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Status : Received
Published: 2026-03-31T02:15:59.267
Modified: 2026-03-31T02:15:59.267
Link: CVE-2026-3300
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OpenCVE Enrichment
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Weaknesses