CVE-2025-12535 json
SureForms <= 1.13.1 - Cross-Site Request Forgery Protection Bypass via Improper Nonce Distribution
published 11mo ago modified 24d ago also EUVD-2025-198139
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 11%
- public exploits
- 0
- none known
Summary
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.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 11mo ago
Exploit prediction
0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected products
- brainstormforce SureForms – Contact Form, Payment Form & Other Custom Form Builder
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/b083cf9d-bcfe-4234-a816-2d216da28b57?source=cve
- plugins.trac.wordpress.org /browser/sureforms/tags/1.13.1/inc/background-process.php#L74
- plugins.trac.wordpress.org /browser/sureforms/tags/1.13.1/inc/admin-ajax.php#L45
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&new=3391762%40sureforms%2Ftrunk&old=3382423%40sureforms%2Ftrunk&sfp
Sources
- CVE List CVE-2025-12535
- NVD CVE-2025-12535
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.