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-2021-23337 Vulnerability in maven package org.webjars.npm:lodash.template
CVE-2021-36686 Vulnerability in npm package yapi-vendor
CVE-2022-24847 Vulnerability in maven package org.geoserver.community:gs-jdbcconfig
CVE-2023-34247 Vulnerability in npm package @keystone-6/auth
CVE-2019-6283 Vulnerability in maven package org.webjars.npm:node-sass