How severe is CVE-2020-11589?

CVE-2020-11589 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-11589 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11589?

CVE-2020-11589 affects Cipplanner Cipace. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11589?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-11589 published?

CVE-2020-11589 was published on 2020-04-06 and last updated on 2026-06-17.

CVE-2020-11589

CVE-2020-11589 is a high-severity vulnerability in Cipplanner Cipace with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-639
Affected product: Cipplanner Cipace
Published: 2020-04-06
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2020-11589?: CVE-2020-11589 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-11589 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11589?: CVE-2020-11589 affects Cipplanner Cipace. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11589?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-11589 published?: CVE-2020-11589 was published on 2020-04-06 and last updated on 2026-06-17.

References

https://www.criticalstart.com/vulnerabilities-discovered-in-cipace-enterprise-platform/

Affected products (1)

cpe:2.3:a:cipplanner:cipace:*:*:*:*:*:*:*:*

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