XSS in Udecode Plate

CVE-2026-55596

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 d…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-55596?
CVE-2026-55596 is a high-severity vulnerability in Udecode Plate, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-07-08.
How severe is CVE-2026-55596?
High severity. CVSS v3 base score is 8.7 out of 10.