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CVE-2026-5109— Gravity Forms <= 2.10.0 - Unauthenticated Stored Cross-Site Scripting via Product Option

CVSS 7.2 · High EPSS 0.01% · P3
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I. Basic Information for CVE-2026-5109

Vulnerability Information
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Vulnerability Title
Gravity Forms <= 2.10.0 - Unauthenticated Stored Cross-Site Scripting via Product Option
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 2.10.0. This is due to insufficient validation and output escaping of Product Option field values. The vulnerability exists because the state validation function accepts submitted values where the wp_kses()-sanitized version matches a legitimate option value, but then stores the raw unsanitized value in the database. When administrators view entry details via the Order Summary section, the option_label is output directly without escaping (view-order-summary.php line 32), executing the injected JavaScript. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in entry data that will execute whenever an administrator accesses the entry details page.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Gravity Forms 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Gravity Forms 2.10.0及之前版本存在跨站脚本漏洞，该漏洞源于对产品选项字段值验证和输出转义不足，可能导致未经身份验证的攻击者在条目数据中注入任意Web脚本，当管理员查看条目详情时执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Gravity FormsGravity Forms 0 ~ 2.10.0 -

II. Public POCs for CVE-2026-5109

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III. Intelligence Information for CVE-2026-5109

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News · 1

Same Patch Batch · Gravity Forms · 2026-05-02 · 5 CVEs total

CVE-2026-51117.2 HIGHGravity Forms <= 2.10.0 - Unauthenticated Stored Cross-Site Scripting via Hidden Product F
CVE-2026-51127.2 HIGHGravity Forms <= 2.10.0 - Unauthenticated Stored Cross-Site Scripting via Calculation Prod
CVE-2026-51107.2 HIGHGravity Forms <= 2.10.0 - Unauthenticated Stored Cross-Site Scripting via Single Product F
CVE-2026-51137.2 HIGHGravity Forms <= 2.10.0 - Unauthenticated Stored Cross-Site Scripting via Consent Field Hi

IV. Related Vulnerabilities

Same product: Gravity Forms
Same vendor: Gravity Forms
Same weakness: CWE-79

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