How severe is CVE-2026-3327?

CVE-2026-3327 has a CVSS 4.0 base score of 4.8, rated medium severity.

Is CVE-2026-3327 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-3327?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-3327 have an EU (EUVD) identifier?

Yes. CVE-2026-3327 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9031.

When was CVE-2026-3327 published?

CVE-2026-3327 was published on 2026-02-27 and last updated on 2026-06-17.

CVE-2026-3327

CVE-2026-3327 is a medium-severity vulnerability with a CVSS 4.0 base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 4.0 base score 4.8)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9031
Weakness: CWE-79
Published: 2026-02-27
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-3327?: 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.
How severe is CVE-2026-3327?: CVE-2026-3327 has a CVSS 4.0 base score of 4.8, rated medium severity.
Is CVE-2026-3327 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-3327?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3327 have an EU (EUVD) identifier?: Yes. CVE-2026-3327 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9031.
When was CVE-2026-3327 published?: CVE-2026-3327 was published on 2026-02-27 and last updated on 2026-06-17.

References

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

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