CVE-2026-55596Patch

LOWCVSS 8.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

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0.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

Patch or workaround signal is available
1 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Full discourse1 post

DFIR Lab@DFIR_Lab92d
Patch
🚨 HIGH: CVE-2026-55596 (CVSS 8.7) - XSS in Plate rich-text editor (v53.0.0-53.1.3). Crafted documents can inject javascript: URLs via media embeds. Patch to v53.1.4 immediately. #CVE #Vulnerability #PatchNow https://t.co/zebLHMcKVl
Post summary
A high‑severity XSS vulnerability (CVE‑2026‑55596) in Plate rich‑text editor v53.0.0‑53.1.3 allows crafted documents to inject javascript URLs; the vendor recommends applying patch v53.1.4 immediately.
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