CVE WatchOct 2, 2026

CVE-2026-104847

ProseMirror's view component renders and manages the editable browser interface for ProseMirror documents. Prior to 1.42.3, prosemirror-view

CVSS

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No CVSS

EPSS

0.3%

p22

KEV

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Exploit Today

0-100

Published: Oct 2, 2026 · Last modified: Oct 2, 2026 · CWE-79

EPSS · 30d

0.3%EPSS · 30 days0.3%

2026-10-032026-10-21

Technical description

ProseMirror's view component renders and manages the editable browser interface for ProseMirror documents. Prior to 1.42.3, prosemirror-view paste handling accepts attacker-provided HTML whose clipboard slice context contains attributes that are not passed through schema attribute validation. When a user pastes the crafted HTML into an editor, the unvalidated context attributes can construct content that executes attacker-controlled JavaScript in the browser window containing the editor. This issue is fixed in version 1.42.3.

Official references

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