EUVD-2026-80782Published

@platejs/core HTML deserialization can trigger browser behavior during parsing

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cve-program · CVE-2026-88976

Published

Plate is a rich-text editor with AI and shadcn/ui. Prior to 53.3.11, and in the discontinued 54.0.0-beta.0 through 54.0.0-beta.1 builds, Plate core HTML deserialization APIs parse supplied HTML strings in the active document. When an application passes untrusted or cross-user HTML to these APIs, certain HTML attributes can trigger browser behavior before the HTML is converted into editor nodes. This can allow attacker-controlled script to execute in the consuming application's origin when another user loads the deserialized content. This issue is fixed in version 53.3.11.

Source published: 16 Sep 2026 14:11:39 UTC
Source modified: 16 Sep 2026 15:25:38 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

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CVSS 3.1 · 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

euvd · EUVD-2026-80782

Published

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EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

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datePublished: Sep 16, 2026, 2:11:39 PM

dateUpdated: Sep 16, 2026, 3:25:38 PM

Source published: Sep 16, 2026, 2:11:39 PM (timezone not stated)
Source modified: Sep 16, 2026, 3:25:38 PM (timezone not stated)
Saved here: 11 Nov 2026 17:03:42 UTC
Source terms: ENISA EUVD · source terms and attribution apply

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EUVD CVSS 3.1 · 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

nvd · CVE-2026-88976

Published

Additional publisher context

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Deferred

Weakness classifications: CWE-79

Original publisher date fields

published: 2026-09-16T15:18:05.850

lastModified: 2026-09-16T16:17:20.227

Source published: 16 Sep 2026 15:18:05 UTC
Source modified: 16 Sep 2026 16:17:20 UTC
Saved here: 25 Oct 2026 16:19:22 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

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Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · [email protected] · Secondary · 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

osv · GHSA-qrfj-mgw8-j9c6

Published

### Summary HTML strings passed to Plate's core deserialization APIs were parsed in the active document. Certain HTML attributes could therefore trigger browser behavior during parsing, before the content was converted into editor nodes. Applications that deserialize HTML from untrusted or cross-user sources may be affected. ### Impact An attacker who can control HTML later deserialized in another user's browser may be able to execute script in that application's origin. ### Remediation Upgrade to `@platejs/core` 53.3.11 or later. Users of the discontinued 54.0.0 beta builds should install the fixed stable line. Applications should also sanitize untrusted HTML before rendering it; inert parsing is not a substitute for sanitization.

Source published: 17 Sep 2026 20:32:47 UTC
Source modified: 17 Sep 2026 20:45:07 UTC
Saved here: 24 Oct 2026 13:17:17 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

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CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Publisher rating · MODERATE