CVE-2024-51757

CRITICALNVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 49% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

happy-dom is a JavaScript implementation of a web browser without its graphical user interface. Versions of happy-dom prior to 15.10.2 may execute code on the host via a script tag. This would execute code in the user context of happy-dom. Users are advised to upgrade to version 15.10.2. There are no known workarounds for this vulnerability.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
73(Attend)
EG Risk 73/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity93% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
50.8%
KEV
Not listed

Published

November 6, 2024

Last Modified

April 15, 2026

Advisory Details (6)

Auto-updated Jul 17, 2026
Patch available. Sources: github_release, github, github_commit, github_pr.
github Patch Available

Fixes security vulnerability that allowed for server side code to be executed by a <script> tag · Advisory · capricorn86/happy-dom · GitHub

Affected: v15.10.1

https://github.com/capricorn86/happy-dom/security/advisories/GHSA-96g7-g7g9-jxw8
github_release Patch Available

v15.10.2

Patch available: capricorn86/happy-dom v15.10.2

https://github.com/capricorn86/happy-dom/releases/tag/v15.10.2
github_pr Patch Available

fix: [#1585] Fixes security vulnerability that allowed for server side code to be executed by a <script> tag

Patch available: capricorn86/happy-dom v20.5.2 (PR #1586 merged 2024-11-06)

https://github.com/capricorn86/happy-dom/pull/1586
generic

Security vulnerability that allows for scripts to execute on the server · Issue #1585 · capricorn86/happy-dom · GitHub

https://github.com/capricorn86/happy-dom/issues/1585
github_commit Patch Available

commit d23834c232f1 (capricorn86/happy-dom)

Patch available: capricorn86/happy-dom v20.5.2 (contains commit d23834c232f1)

https://github.com/capricorn86/happy-dom/commit/d23834c232f1cf5519c9418b073f1dcec6b2f0fd
github_commit Patch Available

commit 5ee0b1676d4c (capricorn86/happy-dom)

Patch available: capricorn86/happy-dom v20.5.2 (contains commit 5ee0b1676d4c)

https://github.com/capricorn86/happy-dom/commit/5ee0b1676d4ce20cc2a70d1c9c8d6f1e3f57efac

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
happy-dom—15.10.2—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 116 total refreshes for this CVE.

  1. 2026-07-23 02:43 UTCEG score recompute
  2. 2026-07-22 14:07 UTCEPSS rescore
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  42. 2026-06-08 16:41 UTCEG score recompute▲ 9.30
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Frequently asked(5)

What is CVE-2024-51757?
CVE-2024-51757 is a critical vulnerability published on November 6, 2024. happy-dom is a JavaScript implementation of a web browser without its graphical user interface. Versions of happy-dom prior to 15.10.2 may execute code on the host via a script tag. This would execute code in the user context of happy-dom. Users are advised to upgrade to version 15.10.2. There are…
When was CVE-2024-51757 disclosed?
CVE-2024-51757 was first published in the National Vulnerability Database on November 6, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-51757 actively exploited?
CVE-2024-51757 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 50.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-51757?
CVE-2024-51757 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2024-51757?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-51757, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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