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CVE-2026-18323— Forminator Forms <= 1.57.0.2 - Unauthenticated Stored Cross-Site Scripting via Radio Field (Save and Continue Draft)

Quick assessment

Affected
wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 插件“Forminator Forms – Contact Form, Payment Form & Custom Form Builder”存在存储型跨站脚本漏洞，影响所有包含 1.57.0.2 及更早版本。该漏洞是由于对输入数据的净化（sanitization）和输出数据的转义（escaping）处理不足所致。攻击者可以未授权地注入任意 Web 脚本，当用户访问被注入的页面时，脚本将自动执行。 该漏洞可利用的原因在于，“保存并继续编辑草稿”（Save-and-Continue Draft）功

CVSS 7.2 · High EPSS 0.31% · P23

Affected Version Matrix 1

VendorProduct Version RangeStatus
wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder ≤ 1.57.0.2 affected
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I. Basic Information for CVE-2026-18323

Vulnerability Information
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Vulnerability Title
Forminator Forms <= 1.57.0.2 - Unauthenticated Stored Cross-Site Scripting via Radio Field (Save and Continue Draft)
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder 0 ~ 1.57.0.2 -

II. Public POCs for CVE-2026-18323

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III. Intelligence Information for CVE-2026-18323

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Patches & Fixes for CVE-2026-18323 (2)

Vendor Advisories for CVE-2026-18323 (2)

Other References for CVE-2026-18323 (2)

IV. Related Vulnerabilities

Same product: Forminator Forms – Contact Form, Payment Form & Custom Form Builder
Same vendor: wpmudev
Same weakness: CWE-79

V. Comments for CVE-2026-18323

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