What is CVE-2022-39183?

CVE-2022-39183 is a medium-severity vulnerability in Moodle Saml Authentication, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.5/10. Published 2023-01-12.

How severe is CVE-2022-39183?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Open Redirect in Moodle Saml Authentication

CVE-2022-39183

Moodle Plugin - SAML Auth may allow Open Redirect through unspecified vectors.

Vulnerability class: Open Redirect

Published 2023-01-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.7th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Moodle Saml Authentication
Moodle Plugin - Saml Auth — versions latest

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

www.gov.il/en/Departments/faq/cve_advisories (Third Party Advisory)

Frequently asked questions

What is CVE-2022-39183?: CVE-2022-39183 is a medium-severity vulnerability in Moodle Saml Authentication, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.5/10. Published 2023-01-12.
How severe is CVE-2022-39183?: Medium severity. CVSS v3 base score is 6.5 out of 10.