CVE-2026-3327

Authenticated DatoCMS Web Previews Plugin Iframe Injection

State: Published
Severity: 4.8 Medium
Published: Feb 27, 2026
Updated: Feb 27, 2026
Reserved: Feb 27, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	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	Intigriti

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Affected Products

Product	Versions
Web PreviewsDatoCMS	< 1.0.31Affected

References

https://github.com/datocms/plugins/commit/7965eebf0973cc5ebb18bc5ff9ce7ff19e89bb2e

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