CVE-2026-3327CWE-79

Authenticated DatoCMS Web Previews Plugin Iframe Injection

Medium · published February 27, 2026

CVSS v4.0
4.8
EPSS
0%
Percentile
35.3
In the wild
Unconfirmed
What it is

Authenticated Iframe Injection in Dato CMS Web Previews plugin. This vulnerability permits a malicious authenticated user to circumvent the restriction enforced on the configured frontend URL, enabling the loading of arbitrary external resources or origins. This issue affects Web Previews < v1.0.31.

The record
Technical detail
CVSS v4.0
4.8 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00421 · 35.3th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-02-27T14:09Z
EPSS history
Timeline
  • 27 FEB 14:09Z
    Authenticated DatoCMS Web Previews Plugin Iframe Injection
    cvelistv5