What is CVE-2018-11119?

CVE-2018-11119 is a medium-severity vulnerability in Ilias, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2018-05-17.

How severe is CVE-2018-11119?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Open Redirect in Ilias

CVE-2018-11119

ILIAS 5.1.x, 5.2.x, and 5.3.x before 5.3.5 redirects a logged-in user to a third-party site via the return_to_url parameter.

Vulnerability class: Open Redirect

Published 2018-05-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (56.7th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: -0.000

Affected products

Ilias — versions 5.1.0, 5.2.0

Weakness classification (CWE)

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

References

www.ilias.de/docu/goto.php (Release Notes, Vendor Advisory)
github.com/ILIAS-eLearning/ILIAS/commit/01a24cf04fe8dddf1da59ca497580637973482b6 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2018-11119?: CVE-2018-11119 is a medium-severity vulnerability in Ilias, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2018-05-17.
How severe is CVE-2018-11119?: Medium severity. CVSS v3 base score is 6.1 out of 10.