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Advisories

blueprintUE Self-Hosted Edition before 4.3.6 Arbitrary Iframe Embedding via PeerTube Matcher

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Severity
medium
Date
Affecting

  • blueprintue-self-hosted-edition >= 1.0.0, < 4.3.6

CWE
  • CWE-829 Inclusion of Functionality from Untrusted Control Sphere
CVSS
4.8
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
Farhan Khan
Description
blueprintUE Self-Hosted Edition before 4.3.6 contains an iframe injection vulnerability that allows authenticated users to embed arbitrary third-party content by abusing the PeerTube video URL matcher in BlueprintService::findVideoProvider(). Attackers can set a blueprint video URL on an attacker-controlled host, which site.js loads in an unsandboxed iframe after consent, framing fake login forms or malware downloads.

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