# CVE-2026-18323: Forminator Forms Stored XSS in Radio Field via Save and Continue Draft

Source: https://junglewise.ai/threats/cve-2026-18323-forminator-forms-stored-xss-in-radio-field-via-save-and-continue  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-25. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-18323 · Severity: high · CVSS 7.2 · Published 2026-08-25

Forminator Forms is a popular WordPress plugin for building contact forms, payment forms, and custom form builders. The plugin is vulnerable to Stored Cross-Site Scripting (XSS) in its radio field handling, allowing unauthenticated attackers to inject malicious scripts that persist in the database and execute whenever site administrators view submissions. An attacker can exploit this to steal admin credentials, modify site content, inject malware, or compromise the entire WordPress installation.

## Quick answers

**Is CVE-2026-18323 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-18323 being exploited in the wild.

**How severe is CVE-2026-18323?** High severity, with a CVSS score of 7.2, published 25 August 2026.

**Which products and versions are affected?** Forminator Forminator Forms up to and including 1.57.0.2.

**Is there a fix for CVE-2026-18323?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-18323 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-18323?** Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability exists in the "Save and Continue Draft" AJAX functionality, which is registered as nopriv (accessible to unauthenticated users). The radio field handler fails to properly sanitize user input and does not perform adequate output escaping. Attackers can bypass radio field option-membership validation by directly submitting crafted payloads to the draft endpoint. When an administrator views the Submissions page, the stored payload is rendered and automatically executed via the Inputmask library's data-attribute callback binding mechanism. The vulnerability affects all versions up to and including 1.57.0.2. Patches addressing the input sanitization and output escaping issues are expected in future releases.

## Affected products

- Forminator Forminator Forms up to and including 1.57.0.2

## Timeline

- 2026-08-25: disclosed

## References

- [https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/admin/views/custom-form/entries/content-details.php](https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/admin/views/custom-form/entries/content-details.php)
- [https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/library/abstracts/abstract-class-front-action.php](https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/library/abstracts/abstract-class-front-action.php)