CVE-2026-47423

HIGHPre-NVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 66% 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, secondary
Trending — 3 sources updated this weekElevated
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: Elevated riskExposed: 0

A fix is available — apply it.

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. In 3.4.4, DOMPurify allowed selectedcontent by default, allowing browsers to re-clone an XSS payload after sanitization so that unsanitized markup inside is returned. This issue is fixed in version 3.4.5.

CVSS v3
8.2
EG Score
8.2(medium)
EG Risk
53(Track)
EG Risk 53/100SSVC: Track

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
Severity82% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

June 1, 2026

Last Modified

July 21, 2026

Advisory Details (3)

Auto-updated Jul 14, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

DOMPurify 3.4.5

Patch available: cure53/DOMPurify 3.4.5

https://github.com/cure53/DOMPurify/releases/tag/3.4.5
github_commit Patch Available

commit 011b0c78f2a0 (cure53/DOMPurify)

Patch available: cure53/DOMPurify 3.4.5 (contains commit 011b0c78f2a0)

https://github.com/cure53/DOMPurify/commit/011b0c78f2a0f57ee54f5fcccb697a46ca6e63ea
github Patch Available🟡 PoC Available

DOMPurify XSS via `selectedcontent` re-clone · Advisory · cure53/DOMPurify · GitHub

https://github.com/cure53/DOMPurify/security/advisories/GHSA-87xg-pxx2-7hvx

Vendor Advisories for CVE-2026-47423(2)

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 / EcosystemFixed in / PatchReleasedSource
redhatruff-main-0.15.11-1.hum12026-04-27redhat

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

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
node-dompurify2.4.1+dfsg+~2.4.0-1 ... 3.4.5+dfsg-1 (15 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-dompurify3.1.7+dfsg+~3.0.5-2 ... 3.4.5+dfsg-1 (9 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-dompurify3.1.7+dfsg+~3.0.5-2 ... 3.4.2+dfsg-1 (7 versions)3.4.5+dfsg-1—
npm(1)
PackageVulnerable rangeFixed inDependents
dompurify3.4.43.4.5—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 79× 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.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-25 03:57 UTCEG score recompute
  3. 2026-08-25 03:57 UTCVendor advisory
  4. 2026-08-23 13:56 UTCEG score recompute
  5. 2026-08-23 13:56 UTCVendor advisory
  6. 2026-08-23 00:19 UTCEPSS rescore
  7. 2026-08-21 23:49 UTCEPSS rescore
  8. 2026-08-21 14:52 UTCVendor advisory
  9. 2026-08-20 23:26 UTCEG score recompute
  10. 2026-08-20 23:26 UTCVendor advisory
  11. 2026-08-20 22:55 UTCEPSS rescore
  12. 2026-08-20 10:18 UTCEG score recompute
  13. 2026-08-20 10:18 UTCVendor advisory
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-18 13:48 UTCEPSS rescore
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 05:05 UTCEG score recompute
  18. 2026-08-17 05:05 UTCVendor advisory
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 04:52 UTCEG score recompute
  21. 2026-08-16 04:52 UTCVendor advisory
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 15:44 UTCVendor advisory
  24. 2026-08-15 01:40 UTCEG score recompute
  25. 2026-08-15 01:40 UTCVendor advisory
Show 74 more
  1. 2026-08-15 01:30 UTCEPSS rescore
  2. 2026-08-14 12:32 UTCVendor advisory
  3. 2026-08-13 23:21 UTCEG score recompute
  4. 2026-08-13 23:21 UTCVendor advisory
  5. 2026-08-13 22:00 UTCEPSS rescore
  6. 2026-08-13 04:52 UTCVendor advisory
  7. 2026-08-12 15:44 UTCEG score recompute
  8. 2026-08-12 15:44 UTCVendor advisory
  9. 2026-08-12 13:51 UTCEPSS rescore
  10. 2026-08-12 02:25 UTCEG score recompute
  11. 2026-08-12 02:25 UTCVendor advisory
  12. 2026-08-11 13:16 UTCEG score recompute
  13. 2026-08-11 13:16 UTCVendor advisory
  14. 2026-08-11 00:00 UTCEPSS rescore
  15. 2026-08-10 23:18 UTCVendor advisory
  16. 2026-08-10 07:06 UTCVendor advisory
  17. 2026-08-09 17:57 UTCEG score recompute
  18. 2026-08-09 17:57 UTCVendor advisory
  19. 2026-08-09 13:46 UTCEPSS rescore
  20. 2026-08-09 04:49 UTCEG score recompute
  21. 2026-08-09 04:49 UTCVendor advisory
  22. 2026-08-08 16:37 UTCEPSS rescore
  23. 2026-08-08 15:41 UTCVendor advisory
  24. 2026-08-08 02:11 UTCEG score recompute
  25. 2026-08-08 02:11 UTCVendor advisory
  26. 2026-08-07 13:02 UTCVendor advisory
  27. 2026-08-06 23:53 UTCEG score recompute
  28. 2026-08-06 23:53 UTCVendor advisory
  29. 2026-08-06 13:47 UTCEPSS rescore
  30. 2026-08-06 09:49 UTCVendor advisory
  31. 2026-08-05 20:40 UTCEG score recompute
  32. 2026-08-05 20:40 UTCVendor advisory
  33. 2026-08-05 19:17 UTCEPSS rescore
  34. 2026-08-04 22:42 UTCEG score recompute
  35. 2026-08-04 22:42 UTCVendor advisory
  36. 2026-08-04 15:10 UTCEPSS rescore
  37. 2026-08-04 10:39 UTCEPSS rescore
  38. 2026-08-04 05:00 UTCVendor advisory
  39. 2026-08-03 15:51 UTCVendor advisory
  40. 2026-08-02 15:58 UTCVendor advisory
  41. 2026-08-02 02:49 UTCVendor advisory
  42. 2026-08-01 13:40 UTCEG score recompute
  43. 2026-08-01 13:40 UTCVendor advisory
  44. 2026-08-01 04:16 UTCEPSS rescore
  45. 2026-07-31 18:58 UTCVendor advisory
  46. 2026-07-31 05:44 UTCEG score recompute
  47. 2026-07-31 05:44 UTCVendor advisory
  48. 2026-07-30 16:28 UTCEPSS rescore
  49. 2026-07-30 01:30 UTCEPSS rescore
  50. 2026-07-29 11:15 UTCEG score recompute
  51. 2026-07-29 11:15 UTCVendor advisory
  52. 2026-07-28 15:37 UTCEPSS rescore
  53. 2026-07-28 03:53 UTCEG score recompute
  54. 2026-07-28 03:53 UTCVendor advisory
  55. 2026-07-26 23:44 UTCEG score recompute
  56. 2026-07-26 23:44 UTCVendor advisory
  57. 2026-07-26 14:54 UTCEPSS rescore
  58. 2026-07-25 14:18 UTCEPSS rescore
  59. 2026-07-24 14:18 UTCEPSS rescore
  60. 2026-07-23 14:18 UTCEPSS rescore
  61. 2026-07-23 03:17 UTCEG score recompute
  62. 2026-07-22 14:08 UTCEPSS rescore
  63. 2026-07-21 15:24 UTCEPSS rescore
  64. 2026-07-20 17:08 UTCEPSS rescore
  65. 2026-07-19 14:31 UTCEPSS rescore
  66. 2026-07-19 02:29 UTCEPSS rescore
  67. 2026-07-18 10:04 UTCEPSS rescore
  68. 2026-07-16 17:03 UTCEPSS rescore
  69. 2026-07-16 01:35 UTCVendor advisory
  70. 2026-07-15 16:57 UTCEPSS rescore
  71. 2026-06-14 23:18 UTCEPSS rescore
  72. 2026-06-13 23:00 UTCEPSS rescore
  73. 2026-06-12 23:12 UTCEPSS rescore
  74. 2026-06-01 14:50 UTCEG score recompute

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-47423?
CVE-2026-47423 is a high vulnerability published on June 1, 2026. DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. In 3.4.4, DOMPurify allowed selectedcontent by default, allowing browsers to re-clone an XSS payload after sanitization so that unsanitized markup inside <selectedcontent> is returned. This issue is fixed in version…
When was CVE-2026-47423 disclosed?
CVE-2026-47423 was first published in the National Vulnerability Database on June 1, 2026, with the most recent update on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47423 actively exploited?
CVE-2026-47423 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 66.2% of all scored CVEs.
What is the CVSS score of CVE-2026-47423?
CVE-2026-47423 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-47423?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47423, 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.

Dependency Blast Radius

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