CVE-2026-16649CWE-79cross-site-scripting

CVE-2026-16649

High · published September 5, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
8.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00190 · 8.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-05T11:17Z
References (2)
EPSS history
Timeline
  • 06 SEP 03:29Z
    EPSS moved — → 0%
    epss
  • 05 SEP 06:37Z
    Gravity Forms <= 2.10.5 - Unauthenticated Stored Cross-Site Scripting via Post Body Field Value
    cvelistv5