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CVE-2026-84992 md-editor-v3: XSS via fenced-code language rendering bypass

🗓️ 18 Sep 2026 17:10:08Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 60 Views

XSS in md-editor-v3 prior to 6.5.4 via unescaped fenced-code language in HTML attributes.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-84992
18 Sep 202618:35
–circl
cve
CVE
CVE-2026-84992
18 Sep 202617:10
–cve
euvd
EUVD
EUVD-2026-83198
18 Sep 202617:10
–euvd
github
Github Security Blog
md-editor-v3: XSS via fenced-code language rendering bypass
18 Sep 202617:17
–github
mend
Mend
CVE-2026-84992
18 Sep 202617:10
–mend
nvd
NVD
CVE-2026-84992
18 Sep 202618:17
–nvd
osv_cve
osv_cve
CVE-2026-84992 md-editor-v3: XSS via fenced-code language rendering bypass
18 Sep 202617:10
–osv_cve
osv_ghsa
osv_ghsa
GHSA-3RM2-H79C-8QW6 md-editor-v3: XSS via fenced-code language rendering bypass
18 Sep 202617:17
–osv_ghsa
patchstack
Patchstack
NPM: md-editor-v3: XSS via fenced-code language rendering bypass
18 Sep 202617:17
–patchstack
ptsecurity
Positive Technologies
PT-2026-95554
18 Sep 202600:00
–ptsecurity
Rows per page
[
  {
    "vendor": "imzbf",
    "product": "md-editor-v3",
    "versions": [
      {
        "version": "< 6.5.4",
        "status": "affected"
      }
    ]
  }
]

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18 Sep 2026 17:10Current
CVSS 3.16.1
EPSS0.00327
SSVC
60