CVE-2026-102577 — Moodle: ssrf risk in url downloader via ipv4-mapped ipv6 address bypass
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 blocke…
Published: 2026-09-30 · CVSS: 4.3 · CVSS 3.1
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).
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7