CVE-2026-18323 json
Forminator Forms <= 1.57.0.2 - Unauthenticated Stored Cross-Site Scripting via Radio Field (Save and Continue Draft)
published 2026-08-25 2 mo ago modified 2026-08-26 2 mo ago also EUVD-2026-65314
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected products
- wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/85b02779-d85f-4700-9994-68391e69c1ea?source=cve
- plugins.trac.wordpress.org /browser/forminator/tags/1.56.0/admin/views/custom-form/entries/content-details.php#L232
- plugins.trac.wordpress.org /browser/forminator/tags/1.56.0/library/modules/custom-forms/front/front-action.php#L1112
- plugins.trac.wordpress.org /browser/forminator/tags/1.56.0/library/fields/radio.php#L520
- plugins.trac.wordpress.org /browser/forminator/tags/1.56.0/library/abstracts/abstract-class-front-action.php#L127
- plugins.trac.wordpress.org /browser/forminator/tags/1.56.0/library/helpers/helper-fields.php#L1053
- plugins.trac.wordpress.org /browser/forminator/tags/1.55.1/admin/views/custom-form/entries/content-details.php#L232
- plugins.trac.wordpress.org /browser/forminator/tags/1.55.1/library/modules/custom-forms/front/front-action.php#L1112
- plugins.trac.wordpress.org /browser/forminator/tags/1.55.1/library/fields/radio.php#L520
- plugins.trac.wordpress.org /browser/forminator/tags/1.55.1/library/abstracts/abstract-class-front-action.php#L127
- plugins.trac.wordpress.org /browser/forminator/tags/1.55.1/library/helpers/helper-fields.php#L1053
- plugins.trac.wordpress.org /changeset?reponame=&new=3652727%40forminator%2Ftags%2F1.57.0.3&old=3652717%40forminator%2Ftags%2F1.57.0.2
- plugins.trac.wordpress.org /changeset/3652725/forminator/trunk/admin/views/custom-form/entries/content-details.php
- plugins.trac.wordpress.org /changeset?old_path=%2Fforminator/tags/1.57.0.2&new_path=%2Fforminator/tags/1.57.0.3
Sources
- CVE List CVE-2026-18323
- NVD CVE-2026-18323
Fencer Vulns 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.