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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| blueprintue | blueprintue-self-hosted-edition | 1.0.0 – < 4.3.6 | 4.3.6 |
References
- GitHub Security Advisory (GHSA-3vgc-fcfg-v233) vendor-advisory
- https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/5f13e2bb8cd4c620899e9f8afd41a6e62b3bc6a4 patch
- https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/269 issue-tracking patch
- blueprintue-self-hosted-edition v4.3.6 Release Notes release-notes
- https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.5/app/services/www/BlueprintService.php#L700-L716 technical-description
- VulnCheck Advisory: blueprintUE Self-Hosted Edition before 4.3.6 Arbitrary Iframe Embedding via PeerTube Matcher third-party-advisory