CVE-2024-51757

CRITICALNVD 9.39.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This critical-severity CVE scores 9.3 under NVD CVSS. EPSS exploit probability: 0.8% (56th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS
Sources: EPSS, NVD CVSS
Elevated

Also known asEUVD-2024-3226 (ENISA EUVD) · GHSA-96g7-g7g9-jxw8 (GitHub Security Advisories)Source: ENISA EUVD

9.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 9.3Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

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
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
73
EG Risk 73/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity93% × 45%
Impact severity (EG Severity): CVSS 9.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.8%
EPSS %ILE
56th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.3): severity, escalated by confirmed exploitation. This CVE's 9.3 is its impact severity (EG Severity), not escalated.

EG Severity
9.3 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS
EG Likelihood
0.8% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

November 6, 2024

Last Modified

April 15, 2026

Advisory Details (6)

Auto-updated Sep 15, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
GitHub advisoryMentions a patch (unverified)

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 pull request 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 v20.10.5 (PR #1586 merged 2024-11-06)

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

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 v20.10.5 (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 v20.10.5 (contains commit 5ee0b1676d4c)

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

Vendor Advisories for CVE-2024-51757(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
npmhappy-dom @ 15.10.2 (fixes < 15.10.2)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
happy-dom—
  • every version up to 15.10.2: fixed in 15.10.2
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 44× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 288 rows on record for this CVE, as 99 entries (1 repeat merged).

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 188 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:47 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  2. 2026-11-13 15:36 UTCEchelonGraph re-scored
  3. 2026-11-13 15:36 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  4. 2026-11-12 16:31 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  5. 2026-11-12 15:06 UTCEchelonGraph re-scored
  6. 2026-11-12 15:06 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  7. 2026-11-11 16:35 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  8. 2026-11-11 14:38 UTCEchelonGraph re-scored
  9. 2026-11-11 14:38 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  10. 2026-11-10 16:39 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  11. 2026-11-10 14:10 UTCEchelonGraph re-scored
  12. 2026-11-10 14:10 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  13. 2026-11-09 16:32 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  14. 2026-11-09 13:41 UTCEchelonGraph re-scored
  15. 2026-11-09 13:41 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  16. 2026-11-08 16:36 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  17. 2026-11-08 13:13 UTCEchelonGraph re-scored
  18. 2026-11-08 13:13 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  19. 2026-11-07 16:36 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  20. 2026-11-07 12:44 UTCEchelonGraph re-scored
  21. 2026-11-07 12:44 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  22. 2026-11-06 16:32 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  23. 2026-11-06 12:16 UTCEchelonGraph re-scored
  24. 2026-11-06 12:16 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  25. 2026-11-05 16:34 UTCEPSS rescoreEPSS 0.8% · 55th percentile
Show 74 more
  1. 2026-11-05 11:48 UTCEchelonGraph re-scored
  2. 2026-11-05 11:48 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  3. 2026-11-05 04:25 UTCOSV refresh
  4. 2026-11-04 16:32 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  5. 2026-11-04 11:20 UTCEchelonGraph re-scored
  6. 2026-11-04 11:20 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  7. 2026-11-03 16:43 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  8. 2026-11-03 10:51 UTCEchelonGraph re-scored
  9. 2026-11-03 10:51 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  10. 2026-11-02 16:41 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  11. 2026-11-02 10:23 UTCEchelonGraph re-scored
  12. 2026-11-02 10:23 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  13. 2026-11-01 09:51 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  14. 2026-11-01 08:11 UTCGHSA enrichmentGHSA-96g7-g7g9-jxw8 · GitHub severity CRITICAL
  15. 2026-11-01 08:11 UTCEchelonGraph re-scored
  16. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  17. 2026-10-31 09:24 UTCEchelonGraph re-scored
  18. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  19. 2026-10-30 08:55 UTCEchelonGraph re-scored
  20. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  21. 2026-10-29 08:27 UTCEchelonGraph re-scored
  22. 2026-10-28 16:29 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  23. 2026-10-28 07:56 UTCEchelonGraph re-scored
  24. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  25. 2026-10-27 07:28 UTCEchelonGraph re-scored
  26. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  27. 2026-10-25 16:58 UTCEchelonGraph re-scored
  28. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  29. 2026-10-25 03:45 UTCEchelonGraph re-scored
  30. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  31. 2026-10-24 03:18 UTCEchelonGraph re-scored
  32. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  33. 2026-10-23 02:49 UTCEchelonGraph re-scored
  34. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  35. 2026-10-22 02:21 UTCEchelonGraph re-scored
  36. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  37. 2026-10-21 01:53 UTCEchelonGraph re-scored
  38. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  39. 2026-10-20 01:25 UTCEchelonGraph re-scored
  40. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  41. 2026-10-19 00:21 UTCEchelonGraph re-scored
  42. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  43. 2026-10-18 06:53 UTCEchelonGraph re-scored
  44. 2026-10-17 23:50 UTCEchelonGraph re-scored
  45. 2026-10-17 16:31 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  46. 2026-10-16 23:20 UTCEchelonGraph re-scored
  47. 2026-10-16 16:37 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  48. 2026-10-15 20:39 UTCEchelonGraph re-scored
  49. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  50. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  51. 2026-10-14 14:44 UTCEchelonGraph re-scored
  52. 2026-10-13 16:31 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  53. 2026-10-12 17:40 UTCEchelonGraph re-scored
  54. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  55. 2026-10-11 21:06 UTCEchelonGraph re-scored
  56. 2026-10-11 15:58 UTCEchelonGraph re-scored
  57. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  58. 2026-10-10 23:17 UTCOSV refresh
  59. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  60. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  61. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  62. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  63. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  64. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  65. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  66. 2026-10-02 16:19 UTCEchelonGraph re-scored
  67. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  68. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  69. 2026-09-29 15:18 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  70. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  71. 2026-09-27 13:44 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  72. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  73. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  74. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.8% · 54th percentile

Frequently asked(5)

What is CVE-2024-51757?
CVE-2024-51757 is a critical-severity vulnerability; its CVE record was 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 the CVE record for CVE-2024-51757 published?
The CVE record for CVE-2024-51757 was published on November 6, 2024. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of April 15, 2026; the record at its source may have been updated since.
Is CVE-2024-51757 actively exploited?
CVE-2024-51757 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (56th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-51757?
CVE-2024-51757 has a CVSS base score of 9.3 (NVD).
How do I remediate CVE-2024-51757?
A fix for CVE-2024-51757 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-51757 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-51757

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