CVE-2026-18323
Forminator Forms <= 1.57.0.2 - Unauthenticated Stored Cross-Site Scripting via Radio Field (Save and Continue Draft)
Description
The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Radio Field (Save and Continue Draft) in all versions up to, and including, 1.57.0.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable because the Save-and-Continue draft submission AJAX endpoint is registered as nopriv, allowing unauthenticated attackers to bypass radio field option-membership validation and persist a crafted payload that, when rendered on the Submissions admin page, is auto-executed via the bundled Inputmask library's data-attribute callback binding.
INFO
Published Date :
Aug. 25, 2026, 8:18 a.m.
Last Modified :
Aug. 25, 2026, 8:18 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-18323
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the Forminator Forms plugin to the latest version.
- Apply vendor patches immediately.
- Review plugin settings for security.
- Sanitize all user inputs.
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-2026-18323.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-18323 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-2026-18323
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-2026-18323 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-18323 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.
-
New CVE Received by [email protected]
Aug. 25, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'wpmudev', 'product': 'Forminator Forms – Contact Form, Payment Form & Custom Form Builder', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '1.57.0.2'}], 'defaultStatus': 'unaffected'}] Added Description The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Radio Field (Save and Continue Draft) in all versions up to, and including, 1.57.0.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable because the Save-and-Continue draft submission AJAX endpoint is registered as nopriv, allowing unauthenticated attackers to bypass radio field option-membership validation and persist a crafted payload that, when rendered on the Submissions admin page, is auto-executed via the bundled Inputmask library's data-attribute callback binding. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/admin/views/custom-form/entries/content-details.php#L232 Added Reference https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/library/abstracts/abstract-class-front-action.php#L127 Added Reference https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/library/fields/radio.php#L520 Added Reference https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/library/helpers/helper-fields.php#L1053 Added Reference https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/library/modules/custom-forms/front/front-action.php#L1112 Added Reference https://plugins.trac.wordpress.org/browser/forminator/tags/1.56.0/admin/views/custom-form/entries/content-details.php#L232 Added Reference https://plugins.trac.wordpress.org/browser/forminator/tags/1.56.0/library/abstracts/abstract-class-front-action.php#L127 Added Reference https://plugins.trac.wordpress.org/browser/forminator/tags/1.56.0/library/fields/radio.php#L520 Added Reference https://plugins.trac.wordpress.org/browser/forminator/tags/1.56.0/library/helpers/helper-fields.php#L1053 Added Reference https://plugins.trac.wordpress.org/browser/forminator/tags/1.56.0/library/modules/custom-forms/front/front-action.php#L1112 Added Reference https://plugins.trac.wordpress.org/changeset/3652725/forminator/trunk/admin/views/custom-form/entries/content-details.php Added Reference https://plugins.trac.wordpress.org/changeset?old_path=%2Fforminator/tags/1.57.0.2&new_path=%2Fforminator/tags/1.57.0.3 Added Reference https://plugins.trac.wordpress.org/changeset?reponame=&new=3652727%40forminator%2Ftags%2F1.57.0.3&old=3652717%40forminator%2Ftags%2F1.57.0.2 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/85b02779-d85f-4700-9994-68391e69c1ea?source=cve