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CVE-2026-72730 Discourse: Stored XSS chat-transcript username unescaped in Rich Text Editor

🗓️ 10 Aug 2026 16:17:04Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 10 Views

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, the Rich Text Editor rendered a chat-transcript username as HTML, allowing stored cross-site scripting. This issue is fixed in versions 2026.1.6,...

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-72730
10 Aug 202616:17
attackerkb
circl
Circl
CVE-2026-72730
10 Aug 202618:00
circl
cve
CVE
CVE-2026-72730
10 Aug 202616:17
cve
euvd
EUVD
EUVD-2026-55670
10 Aug 202616:17
euvd
nvd
NVD
CVE-2026-72730
10 Aug 202617:17
nvd
vulnrichment
Vulnrichment
CVE-2026-72730 Discourse: Stored XSS chat-transcript username unescaped in Rich Text Editor
10 Aug 202616:17
vulnrichment
[
  {
    "vendor": "discourse",
    "product": "discourse",
    "versions": [
      {
        "version": "< 2026.1.6",
        "status": "affected"
      },
      {
        "version": ">= 2026.5.0-latest, < 2026.5.2",
        "status": "affected"
      },
      {
        "version": ">= 2026.6.0-latest, < 2026.6.1",
        "status": "affected"
      }
    ]
  }
]

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10 Aug 2026 16:17Current
CVSS 3.18.7
10