CVE-2025-12535
SureForms <= 1.13.1 - Cross-Site Request Forgery Protection Bypass via Improper Nonce Distribution
Description
The SureForms plugin for WordPress is vulnerable to Cross-Site Request Forgery Bypass in all versions up to, and including, 1.13.1. This is due to the plugin distributing generic WordPress REST API nonces (wp_rest) to unauthenticated users via the 'wp_ajax_nopriv_rest-nonce' action. While the plugin legitimately needs to support unauthenticated form submissions, it incorrectly uses generic REST nonces instead of form-specific nonces. This makes it possible for unauthenticated attackers to bypass CSRF protection on REST API endpoints that rely solely on nonce verification without additional authentication checks, allowing them to trigger unauthorized actions such as the plugin's own post-submission hooks and potentially other plugins' REST endpoints.
INFO
Published Date :
Nov. 19, 2025, 7:15 a.m.
Last Modified :
Oct. 18, 2026, 8:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the SureForms plugin to version 1.13.2.
- Apply form-specific nonces for REST API endpoints.
- Implement additional authentication checks for REST endpoints.
- Validate REST API endpoint nonce usage.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-12535.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-12535 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-12535
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-12535 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-12535 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Oct. 18, 2026
Action Type Old Value New Value Added Translation Title: SureForms - Contact Form, Custom Form Builder, Calculator & More de brainstormforce, Description: El plugin SureForms para WordPress es vulnerable a la elusión de Cross-Site Request Forgery en todas las versiones hasta la 1.13.1, inclusive. Esto se debe a que el plugin distribuye nonces genéricos de la API REST de WordPress (wp_rest) a usuarios no autenticados a través de la acción 'wp_ajax_nopriv_rest-nonce'. Si bien el plugin necesita legítimamente soportar envíos de formularios no autenticados, utiliza incorrectamente nonces REST genéricos en lugar de nonces específicos del formulario. Esto hace posible que atacantes no autenticados eludan la protección CSRF en los endpoints de la API REST que dependen únicamente de la verificación de nonces sin comprobaciones de autenticación adicionales, permitiéndoles desencadenar acciones no autorizadas como los propios hooks de post-envío del plugin y potencialmente los endpoints REST de otros plugins. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'brainstormforce', 'product': 'SureForms – Contact Form, Payment Form & Other Custom Form Builder', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '1.13.1'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-12535', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2025-11-19T18:50:24.557712Z'} -
New CVE Received by [email protected]
Nov. 19, 2025
Action Type Old Value New Value Added Description The SureForms plugin for WordPress is vulnerable to Cross-Site Request Forgery Bypass in all versions up to, and including, 1.13.1. This is due to the plugin distributing generic WordPress REST API nonces (wp_rest) to unauthenticated users via the 'wp_ajax_nopriv_rest-nonce' action. While the plugin legitimately needs to support unauthenticated form submissions, it incorrectly uses generic REST nonces instead of form-specific nonces. This makes it possible for unauthenticated attackers to bypass CSRF protection on REST API endpoints that rely solely on nonce verification without additional authentication checks, allowing them to trigger unauthorized actions such as the plugin's own post-submission hooks and potentially other plugins' REST endpoints. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Added CWE CWE-352 Added Reference https://plugins.trac.wordpress.org/browser/sureforms/tags/1.13.1/inc/admin-ajax.php#L45 Added Reference https://plugins.trac.wordpress.org/browser/sureforms/tags/1.13.1/inc/background-process.php#L74 Added Reference https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3391762%40sureforms%2Ftrunk&old=3382423%40sureforms%2Ftrunk&sfp_email=&sfph_mail= Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/b083cf9d-bcfe-4234-a816-2d216da28b57?source=cve