CVE-2026-3327
Authenticated Iframe Injection in Dato CMS Web Previews Plugin
Publication date: 2026-02-27
Last updated on: 2026-02-27
Assigner: 3ba556a3-57d7-4c5d-b460-9d6daa180ee1
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| dato | cms_web_previews | to 1.0.31 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an authenticated iframe injection issue in the Dato CMS Web Previews plugin versions before 1.0.31. It allows a malicious user who is authenticated to bypass the restriction that limits the frontend URL to a configured domain. As a result, the attacker can load arbitrary external resources or origins within the iframe.
How can this vulnerability impact me? :
The impact of this vulnerability is that an authenticated attacker can inject iframes that load arbitrary external content. This could lead to security risks such as exposure to malicious external resources, potential data leakage, or unauthorized interactions with external origins that were supposed to be restricted.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know