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

7.2
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-16649
CVSS 7.2 (High)
Publicly Published September 4, 2026
Last Updated September 5, 2026
Researcher daroo

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.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

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Vulnerability Details for Gravity Forms

Software Type Plugin
Software Slug gravityforms
Patched? Yes
Remediation Update to version 3.0.0, or a newer patched version
Affected Version
  • <= 2.10.5
Patched Version
  • 3.0.0

Recent vulnerabilities in Gravity Forms

# Title CVE ID CVSS Researchers Date
1 Gravity Forms <= 3.1.0.4 - Unauthenticated Arbitrary File Upload via Hidden File Upload Field CVE-2026-84434 9.8 0xd4rk5id3 September 18, 2026
2 Gravity Forms <= 3.0.2 - Unauthenticated Arbitrary File Upload via State/Chunk Hash Confusion CVE-2026-19513 8.1 Alex Thomas, Wordfence Argus September 1, 2026
3 Gravity Forms <= 2.10.4 - Unauthenticated Arbitrary File Read via 'gform_uploaded_files' Parameter CVE-2026-12997 7.5 daroo July 15, 2026
4 Gravity Forms <= 2.10.0.1 - Unauthenticated Arbitrary File Deletion CVE-2026-48866 9.1 daroo June 1, 2026
5 Gravity Forms <= 2.10.0 - Unauthenticated Stored Cross-Site Scripting via Hidden Product Field in Repeater CVE-2026-5111 7.2 Luc Huynh from Noventiq RedTeam May 1, 2026
6 Gravity Forms <= 2.10.0 - Unauthenticated Stored Cross-Site Scripting via Product Option CVE-2026-5109 7.2 Luc Huynh from Noventiq RedTeam May 1, 2026
7 Gravity Forms <= 2.9.30 - Unauthenticated Stored Cross-Site Scripting via Consent Field Hidden Input CVE-2026-5113 7.2 Luc Huynh from Noventiq RedTeam May 1, 2026
8 Gravity Forms <= 2.10.0 - Unauthenticated Stored Cross-Site Scripting via Single Product Field Inside Repeater CVE-2026-5110 7.2 Luc Huynh from Noventiq RedTeam May 1, 2026
9 Gravity Forms <= 2.10.0 - Unauthenticated Stored Cross-Site Scripting via Calculation Product Field in Repeater CVE-2026-5112 7.2 Luc Huynh from Noventiq RedTeam May 1, 2026
10 Gravity Forms <= 2.9.30 - Unauthenticated Stored Cross-Site Scripting via Credit Card 'Card Type' Sub-Field CVE-2026-4394 6.1 Luc Huynh from Noventiq RedTeam April 7, 2026

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