# CVE-2025-12535: SureForms <= 1.13.1 - Cross-Site Request Forgery Protection Bypass via Improper Nonce Distribution

> Unauthenticated attackers can bypass CSRF protection in SureForms by exploiting generic nonce distribution, triggering unauthorized actions on REST API endpoints.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Nov 2025
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-2wj7-vvm5-4h6v

## What is CVE-2025-12535?

CVE-2025-12535 is a medium-severity vulnerability in brainstormforce SureForms – Contact Form, Payment Form & Other Custom Form Builder, published on 19 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2025-12535?


## How do I fix CVE-2025-12535?

No fix has been published for CVE-2025-12535 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-12535 being exploited?

There is no known exploitation of CVE-2025-12535 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-12535 and fix it if it is affected.

What it is: CVE-2025-12535 is a medium-severity vulnerability in brainstormforce SureForms – Contact Form, Payment Form & Other Custom Form Builder, published on 19 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-12535 in the wild and no public exploit code.

Affected product: brainstormforce SureForms – Contact Form, Payment Form & Other Custom Form Builder. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-12535/ (Markdown: https://insights.sbomify.com/CVE-2025-12535/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-12535
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-12535
- OSV: https://osv.dev/vulnerability/CVE-2025-12535

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-12535/
Summaries are generated and may contain mistakes; the official description above is the record.