How severe is CVE-2020-11975?

CVE-2020-11975 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-11975 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 30% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11975?

CVE-2020-11975 affects Apache Unomi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11975?

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

When was CVE-2020-11975 published?

CVE-2020-11975 was published on 2020-06-05 and last updated on 2026-06-17.

CVE-2020-11975

CVE-2020-11975 is a critical-severity vulnerability in Apache Unomi with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 30% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 30% (98th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apache Unomi
Published: 2020-06-05
Last modified: 2026-06-17

Description

Apache Unomi allows conditions to use OGNL scripting which offers the possibility to call static Java classes from the JDK that could execute code with the permission level of the running Java process.

Frequently asked questions

What is CVE-2020-11975?: Apache Unomi allows conditions to use OGNL scripting which offers the possibility to call static Java classes from the JDK that could execute code with the permission level of the running Java process.
How severe is CVE-2020-11975?: CVE-2020-11975 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-11975 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 30% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11975?: CVE-2020-11975 affects Apache Unomi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11975?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-11975 published?: CVE-2020-11975 was published on 2020-06-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:unomi:*:*:*:*:*:*:*:*

More vulnerabilities in Apache Unomi

CVE-2020-13942 — Critical (CVSS 9.8): It is possible to inject malicious OGNL or MVEL scripts into the /context.json public endpoint. This was partially…
CVE-2021-31164 — High (CVSS 7.5): Apache Unomi prior to version 1.5.5 allows CRLF log injection because of the lack of escaping in the log statements.

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