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CVE-2026-104847

Updated on 02 Oct 2026

Severity

8.5 High severity

Details

CVSS score
8.5
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE ID
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

Impact

When a user pastes attacker-provided HTML into a ProseMirror editor component, this can cause attacker-controlled JavaScript code to run in the browser window containing the editor.

Patches

Version 1.42.3 adds validation that prevents this attack.

Workarounds

No known workarounds.

Details

Affected product:
prosemirror-view
Affected packages:
prosemirror-view @ 1.33.6 (+4 more)