CVE-2026-2440CWE-79

SurveyJS: Drag & Drop Form Builder <= 2.5.3 - Unauthenticated Stored Cross-Site Scripting

High · published March 21, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
20.7
In the wild
Unconfirmed
What it is

The SurveyJS plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.5.3 via survey result submissions. This is due to insufficient input sanitization and output escaping. The public survey page exposes the nonce required for submission, allowing unauthenticated attackers to submit HTML-encoded payloads that are decoded and rendered as executable HTML when an administrator views survey results, leading to stored XSS in the admin context.

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
0.00293 · 20.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-03-21T03:26Z
EPSS history
Timeline
  • 21 MAR 03:26Z
    SurveyJS: Drag & Drop Form Builder <= 2.5.3 - Unauthenticated Stored Cross-Site Scripting
    cvelistv5