Security readout for executives and security teams
Apache Unomi deployments with the vulnerable /context.json public endpoint could allow remote code execution through malicious OGNL or MVEL script input. Apache says an earlier 1.5.1 fix was incomplete and recommends upgrading to the latest 1.5.x release. Exposure is most likely where Apache Unomi is deployed and its /context.json endpoint is reachable by untrusted users. The source bundle does not specify exact vulnerable version ranges beyond the 1.5.1 partial fix and 1.5.2 filtering change. High priority for any organization running Apache Unomi, especially if exposed externally. Remote code execution in a public endpoint can create direct system compromise risk, and Apache identified an incomplete earlier fix. Mitigation focus: Upgrade Apache Unomi to the latest available 1.5.x release.; Prioritize systems still on or near Apache Unomi 1.5.1.; Review Apache advisory and release notes for version-specific guidance..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-20: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-13942 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- [unomi-dev] 20201124 CVE-2020-13942: Remote Code Execution in Apache UnomiCVE reference · mailing-list, x_refsource_MLIST
- [unomi-users] 20201124 CVE-2020-13942: Remote Code Execution in Apache UnomiCVE reference · mailing-list, x_refsource_MLIST
- [unomi-users] 20201124 Apache Unomi 1.5.4 ReleaseCVE reference · mailing-list, x_refsource_MLIST
- [unomi-dev] 20201124 Apache Unomi 1.5.4 ReleaseCVE reference · mailing-list, x_refsource_MLIST
- [announce] 20201124 CVE-2020-13942: Remote Code Execution in Apache UnomiCVE reference · mailing-list, x_refsource_MLIST
- https://advisory.checkmarx.net/advisory/CX-2020-4284CVE reference · x_refsource_MISC
- [unomi-commits] 20210428 svn commit: r1889256 - in /unomi/website: contribute-release-guide.html documentation.html download.html index.html security/cve-2021-31164.txtCVE reference · mailing-list, x_refsource_MLIST
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.