{"cve":"CVE-2019-3809","nvd":{"published":"2019-03-25T18:29:00.730","modified":"2026-06-17T02:35:38.013","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10.0},"cwes":["CWE-918","CWE-352"],"references":["http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-64222","https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3809","https://moodle.org/mod/forum/discuss.php?d=381229#p1536766","http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-64222","https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3809"],"products":["moodle:moodle"],"source":"nvd","synced_at":"2026-10-19T20:55:22.313337056+00:00"},"epss":{"cve":"CVE-2019-3809","score":0.00837,"percentile":0.57784,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}