TI-2026-02870 Aliases CVE-2026-3327 GHSA-x8p2-g6vv-f5mr

Authenticated DatoCMS Web Previews Plugin Iframe Injection

LOW 22CWE-79Published 2026-02-27 · Updated 2026-02-27

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Active
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00363 30th percentileScored 2026-11-07

Fix Fixed Web Previews (DatoCMS): 1.0.31

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
DatoCMS	Web Previews	before 1.0.31	1.0.31	Patch available	CNA

Web Previews VendorDatoCMS Affected before 1.0.31 Fixed in 1.0.31 Patch available CNA

Remediation

Fix · CNA Web Previews (DatoCMS) Fixed in 1.0.31

Timeline

2026-10-02 Threatist record created from CVE-2026-3327
2026-10-03 Alias added: GHSA-x8p2-g6vv-f5mr

References

Other 1

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

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences