CVE-2019-3809

Moodle Blind SSRF Risk in /badges/mybackpack.php

Published 25 Mar 2019Modified 17 Jun 2026CWE 352, 918

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD10.0CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

GHSA10.0CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, GHSA. Rated lower by Ubuntu (medium).

Description

A flaw was found in Moodle versions 3.1 to 3.1.15 and earlier unsupported versions. The mybackpack functionality allowed setting the URL of badges, when it should be restricted to the Mozilla Open Badges backpack URL. This resulted in the possibility of blind SSRF via requests made by the page.

Affected packages and fixed versions

Source	Package	Fixed in
composer::GitHub Security Advisory Composer	moodle/moodle	3.1.16
ubuntu 18.04-ESM	moodle	3.0.3+dfsg-0ubuntu1+esm1

References

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