CVE-2026-16649 Details
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.
A stored cross-site scripting vulnerability has been identified in the Gravity Forms plugin for WordPress, affecting all versions through 2.10.5. The issue arises from inadequate input sanitization and output escaping, allowing unauthenticated attackers to inject arbitrary web scripts into pages. These scripts execute when a user accesses the affected page. The vulnerability bypasses save-time sanitization because the 'wp_kses_post' function permits the necessary HTML tags and attributes. Additionally, a client-side tooltip script reprocesses the browser-decoded 'aria-label' value as innerHTML, only removing script elements while leaving event-handler attributes like 'onerror' fully functional and executable.
Users are advised to update the Gravity Forms plugin to version 3.0.0 or a newer patched version.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 5, 2026CISA-ADP
Assessed Sep 8, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://docs.gravityforms.com/gravityforms-change-log/ | [email protected] | Release NotesVendor |
| https://www.wordfence.com/threat-intel/vulnerabilities/id/187a420d-a5a5-4b0e-945b-c5694243e68f?source=cve | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Gravity Forms | <= 2.10.5 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 8, 2026 | CVE Modified | CISA-ADP |
| Sep 5, 2026 | New CVE Received | [email protected] |