Is CVE-2020-13942 in the CISA KEV catalog?

No. CVE-2020-13942 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-13942?

CVE-2020-13942 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-13942?

CVE-2020-13942 has an EPSS score of 68.40% (99th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-13942?

Upgrade unomi to 1.5.2 or later.

CVE & CISA-KEV Catalog

CVE-2020-13942

CRITICALEPSS 99th pctl

9.8

CVSS v3

NVD

Description

It is possible to inject malicious OGNL or MVEL scripts into the /context.json public endpoint. This was partially fixed in 1.5.1 but a new attack vector was found. In Apache Unomi version 1.5.2 scripts are now completely filtered from the input. It is highly recommended to upgrade to the latest available version of the 1.5.x release to fix this problem.

CWE-20Improper Input Validation CWE-74Injection

How to fix

Remediation Available

unomiNVD

Affected:>= 1.5.0, < 1.5.2Fixed in:1.5.2CVE-2020-13942derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

68.40%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Exploit1

advisory.checkmarx.net

Vendor Advisory1

unomi.apache.org.

Third-Party Advisory1

openwall.com

Other references6

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.