Nextcloud: SSRF protection bypass

CVSS ---- High 7.7 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Description ----------- The filter which protects Nextcloud from SSRF can be bypassed using IPv6/IPv4 address embedding. SSRF protection is for example used in the calendar or dav apps. Successful exploitation of the issue will allow...