What is CVE-2020-11589?

CVE-2020-11589 is a high-severity vulnerability in Cipplanner Cipace, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2020-04-06.

How severe is CVE-2020-11589?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Cipplanner Cipace

CVE-2020-11589

An Insecure Direct Object Reference issue was discovered in CIPPlanner CIPAce 9.1 Build 2019092801. An unauthenticated attacker can make a GET request to a certain URL and obtain information that should be provided to authenticated users only.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2020-04-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (65.1th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Cipplanner Cipace

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

www.criticalstart.com/vulnerabilities-discovered-in-cipace-enterprise-platform/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-11589?: CVE-2020-11589 is a high-severity vulnerability in Cipplanner Cipace, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2020-04-06.
How severe is CVE-2020-11589?: High severity. CVSS v3 base score is 7.5 out of 10.