Description
This affects all versions of package mout. The deepFillIn function can be used to 'fill missing properties recursively', while the deepMixIn mixes objects into the target object, recursively mixing existing child objects as well. In both cases, the key used to access the target object recursively is not checked, leading to exploiting this vulnerability. **Note:** This vulnerability derives from an incomplete fix of [CVE-2020-7792](https://security.snyk.io/vuln/SNYK-JS-MOUT-1014544).
Remediation
References
https://github.com/mout/mout/blob/master/src/object/deepFillIn.js
https://github.com/mout/mout/blob/master/src/object/deepMixIn.js
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-2870623
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2870622
https://snyk.io/vuln/SNYK-JS-MOUT-2342654
Related Vulnerabilities
CVE-2021-26291 Vulnerability in maven package org.apache.maven:apache-maven
CVE-2019-14862 Vulnerability in maven package org.webjars:knockout
CVE-2023-22621 Vulnerability in npm package @strapi/plugin-email
CVE-2017-12617 Vulnerability in maven package org.apache.tomcat:catalina
CVE-2022-45921 Vulnerability in maven package io.fusionauth:fusionauth-java-client