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CVE-2020-8138

Description

A missing check for IPv4 nested inside IPv6 in Nextcloud server < 17.0.1, < 16.0.7, and < 15.0.14 allowed a Server-Side Request Forgery (SSRF) vulnerability when subscribing to a malicious calendar URL.

POC

Reference

- https://hackerone.com/reports/736867

Github

No PoCs found on GitHub currently.