Plate is a rich-text editor with AI and shadcn/ui. From 53.0.0 until 53.1.4, the media embed renderer trusts serialized provider or sourceUrl metadata in useMediaState and skips parseMediaUrl protocol validation, allowing a crafted Plate document to set a known video provider while keeping url as a javascript: iframe source that the registry MediaEmbedElement renders directly as an iframe src when a victim opens the document. This issue is fixed in version 53.1.4.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://github.com/udecode/plate/commit/6214914ca811adf22d0ad503154494216eed68ba
security-advisories@github.com
https://github.com/udecode/plate/pull/5014
security-advisories@github.com
https://github.com/udecode/plate/releases/tag/v53.1.4
security-advisories@github.com
https://github.com/udecode/plate/security/advisories/GHSA-qj6x-xx2h-8hvv
security-advisories@github.com