CVE-2026-88976 json
@platejs/core HTML deserialization can trigger browser behavior during parsing
published last mo. modified last mo. also EUVD-2026-80782 , GHSA-qrfj-mgw8-j9c6
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm @platejs/core 53.3.11
- udecode plate 53.3.11
- github.com/udecode/plate@d02afe4 commit
- github.com/udecode/plate#5117 pull request
- github.com/udecode/plate/releases/tag/v53.3.11 release
Is CVE-2026-88976 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @platejs/core | <53.3.11 >=54.0.0-beta.0, <=54.0.0-beta.1 |
53.3.11 |
Affected products
- udecode plate
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/udecode/plate/pull/5117
web
-
github.com
/udecode/plate/commit/d02afe45d5ec3a9fb95e0745bc5820ff18a3c12b
web
-
github.com
/udecode/plate/security/advisories/GHSA-qrfj-mgw8-j9c6
web
-
github.com
/udecode/plate/releases/tag/v53.3.11
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-88976
advisory
-
github.com
/udecode/plate
package
Sources
- CVE List CVE-2026-88976
- GitHub Advisory GHSA-qrfj-mgw8-j9c6
- NVD CVE-2026-88976
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.