CVE-2026-57530Disclosure

LOWCVSS 5.1 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Milkdown before 7.21.3 contains a stored cross-site scripting vulnerability in the @milkdown/preset-commonmark and @milkdown/components packages that allows attackers with document write access to execute arbitrary JavaScript in the browser context of any user who opens the document or clicks a rendered link. The parseMarkdown runner stores raw URL values from the remark AST as href mark attributes without URL scheme validation, and the ineffective DOMPurify.sanitize call in edit-view.ts treats the bare URL string as a text node and returns it unchanged, allowing javascript: payloads to pass through the link-tooltip preview component and read-only mode anchor elements unmodified.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-25: 2Technical Details · 2026-07-25: 207-25
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-57530 Milkdown before 7.21.3 contains a stored cross-site scripting vulnerability in the @milkdown/preset-commonmark and @milkdown/components packages that allows attackers… https://www.cve.org/CVERecord?id=CVE-2026-57530 ----- Traducción: CVE-2026-57530 Mil… http://infoflow.cloud`

    Post summary

    A brief disclosure of CVE-2026-57530, noting a stored XSS flaw in Milkdown packages, with a link to the CVE record.

    0000037
    95 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-57530 Milkdown before 7.21.3 contains a stored cross-site scripting vulnerability in the @milkdown/preset-commonmark and @milkdown/components packages that allows attackers… https://www.cve.org/CVERecord?id=CVE-2026-57530

    Post summary

    The text discloses that Milkdown versions before 7.21.3 have a stored cross‑site scripting vulnerability in the @milkdown/preset-commonmark and @milkdown/components packages.

    000001.7K
    57.9K followersView on X

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