Vulnerability Details CVE-2026-102577
A flaw was found in Moodle. Incorrect handling of IPv4-mapped IPv6 addresses within the URL downloader's host-blocking logic allows an authenticated remote user to bypass blocked-host restrictions. By supplying a crafted URL, an attacker can induce the server to make requests to restricted destinations, leading to Server-Side Request Forgery (SSRF).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 16.4%
CVSS Severity
CVSS v3 Score 4.3