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).
Metrics
Affected Vendors & Products
References
History
Thu, 01 Oct 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* |
Wed, 30 Sep 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 30 Sep 2026 11:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Moodle
Moodle moodle |
|
| Vendors & Products |
Moodle
Moodle moodle |
Wed, 30 Sep 2026 09:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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). | |
| Title | Moodle: ssrf risk in url downloader via ipv4-mapped ipv6 address bypass | |
| Weaknesses | CWE-918 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: fedora
Published: 2026-09-30T08:35:59.663Z
Updated: 2026-09-30T14:37:24.853Z
Reserved: 2026-09-29T14:03:38.493Z
Link: CVE-2026-102577
Updated: 2026-09-30T14:37:21.338Z
Status : Analyzed
Published: 2026-09-30T09:17:14.660
Modified: 2026-10-01T14:14:18.313
Link: CVE-2026-102577
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