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CVE-2026-47733 Rocket.Chat: Missing URL protocol sanitization in ImageElement allows javascript: URLs in markdown images

🗓️ 24 Jun 2026 20:51:29Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, the ImageElement component in packages/gazzodown renders user-controlled src values directly into and attributes without protocol sanitization. Un...

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-47733
24 Jun 202620:51
attackerkb
Circl
CVE-2026-47733
24 Jun 202622:29
circl
CVE
CVE-2026-47733
24 Jun 202620:51
cve
EUVD
EUVD-2026-39089
24 Jun 202620:51
euvd
NVD
CVE-2026-47733
24 Jun 202621:16
nvd
Positive Technologies
PT-2026-52097
24 Jun 202600:00
ptsecurity
[
  {
    "vendor": "RocketChat",
    "product": "Rocket.Chat",
    "versions": [
      {
        "version": "< 8.5.0",
        "status": "affected"
      }
    ]
  }
]

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24 Jun 2026 20:51Current
CVSS 3.14.4
EPSS0.00019
5