EUVD-2026-48736Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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
Primary rating from Vendor (VulnCheck) · only source for this CVE.
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
2DescriptionCVE.org
Milkdown before 7.21.3 contains a DOM cross-site scripting vulnerability in the @milkdown/plugin-emoji package that allows unauthenticated attackers to execute arbitrary JavaScript in the host application's origin by causing a victim to paste attacker-controlled content. The parseDOM.getAttrs handler stores raw innerHTML of pasted span elements with data-type="emoji" without sanitization, and the toMarkdown runner subsequently assigns this unsanitized value directly to a live DOM element's innerHTML, bypassing the DOMPurify sanitization used in the toDOM path, causing payload execution on every markdown serialization cycle.
AnalysisAI
DOM-based cross-site scripting in Milkdown's @milkdown/plugin-emoji before version 7.21.3 allows unauthenticated attackers to execute arbitrary JavaScript in the origin of applications embedding Milkdown when a victim pastes attacker-controlled content. The flaw stems from unsanitized innerHTML stored during HTML-to-markdown parsing and later assigned directly to a live DOM element, bypassing DOMPurify sanitization in the rendering path. No active exploitation or public exploit is known, and the EPSS score is low (0.25%).
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
Leaving vuln.today