Vulnerability DatabaseCVE-2019-3809
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CVE-2019-3809
Published:March 25, 2019
Updated:May 16, 2026
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
moodle/moodle (PHP):
Affected version(s) >=v3.1.0 <v3.1.16
Fix Suggestion:
Update to version v3.1.16
Related Resources (5)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3809
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-64222
https://moodle.org/mod/forum/discuss.php?d=381229#p1536766
https://github.com/moodle/moodle
https://nvd.nist.gov/vuln/detail/CVE-2019-3809
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Server-Side Request Forgery (SSRF)
CWE-918
Cross-Site Request Forgery (CSRF)
CWE-352
EPSS
Base Score:
0.26