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CVE-2026-16649— Gravity Forms <= 2.10.5 - Unauthenticated Stored Cross-Site Scripting via Post Body Field Value

Quick assessment

Affected
Gravity Forms Gravity Forms
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.

Gravity Forms是Gravity Forms公司的一款创建表单的CMS组件。 Gravity Forms 2.10.5及之前版本存在跨站脚本漏洞，该漏洞源于对Post Body字段值的输入清理和输出转义不足，可能导致未经身份验证的攻击者注入任意Web脚本，在用户访问被注入页面时执行存储型跨站脚本攻击。

CVSS 7.2 · High EPSS 0.32% · P25

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
Gravity Forms Gravity Forms ≤ 2.10.5 affected
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I. Basic Information for CVE-2026-16649

Vulnerability Information
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Vulnerability Title
Gravity Forms <= 2.10.5 - Unauthenticated Stored Cross-Site Scripting via Post Body Field Value
Source: CVE Program / CVE List V5
Vulnerability Description
The Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Post Body Field Value in all versions up to, and including, 2.10.5 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. The exploit survives save-time sanitization because wp_kses_post allows the required HTML tags and attributes, and the client-side tooltip script re-parses the browser-decoded aria-label value as innerHTML while only stripping script elements, leaving onerror and other event-handler attributes fully intact and executable.
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
Vulnerability Title
Gravity Forms 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gravity Forms是Gravity Forms公司的一款创建表单的CMS组件。 Gravity Forms 2.10.5及之前版本存在跨站脚本漏洞，该漏洞源于对Post Body字段值的输入清理和输出转义不足，可能导致未经身份验证的攻击者注入任意Web脚本，在用户访问被注入页面时执行存储型跨站脚本攻击。
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

Vendor Product Affected Versions CPE Subscribe
Gravity Forms Gravity Forms 0 ~ 2.10.5 -

II. Public POCs for CVE-2026-16649

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III. Intelligence Information for CVE-2026-16649

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Vendor Advisories for CVE-2026-16649 (1)

IV. Related Vulnerabilities

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