CVE-2026-102577
CVE-2026-102577 · Moodle: ssrf risk in url downloader via ipv4-mapped ipv6 address bypass
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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).
CVSS 4.3 · Medium · EPSS 0.2%
- Published
- Updated
Stack: system
Affected products and versions
moodle Ubuntu:Pro:16.04:LTS
- Versions
- 2.7.9+dfsg-1
- 2.7.10+dfsg-1
- 2.7.11+dfsg-1
- 2.7.11+dfsg-2
- 2.7.12+dfsg-1
- 3.0.3+dfsg-0ubuntu1
- 3.0.3+dfsg-0ubuntu1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
moodle Ubuntu:Pro:18.04:LTS
- Versions
- 3.0.3+dfsg-0ubuntu1
- 3.0.3+dfsg-0ubuntu1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published