What is CVE-2021-27352?

CVE-2021-27352 is a medium-severity vulnerability in Ilch Cms, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 5.4/10. Published 2021-03-29.

How severe is CVE-2021-27352?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Open Redirect in Ilch Cms

CVE-2021-27352

An open redirect vulnerability in Ilch CMS version 2.1.42 allows attackers to redirect users to an attacker's site after a successful login.

Vulnerability class: Open Redirect

Published 2021-03-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Ilch Cms — versions 2.1.42

Weakness classification (CWE)

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

References

drive.google.com/file/d/1kSDlPASBCgJEINxTSIsjMWrU4u4T5XCc/view (Exploit, Third Party Advisory)
www.ilch.de/ (Product)
github.com/xoffense/POC/blob/main/Ilch 2.1.42 Open redirect (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-27352?: CVE-2021-27352 is a medium-severity vulnerability in Ilch Cms, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 5.4/10. Published 2021-03-29.
How severe is CVE-2021-27352?: Medium severity. CVSS v3 base score is 5.4 out of 10.