CVE-2020-7766
HIGH7.3EPSS 1.1%Arbitrary Code Execution in json-ptr
Published: 5/10/2021Modified: 1/14/2025
Description
npm `json-ptr` before 2.1.0 has an arbitrary code execution vulnerability. The issue occurs in the [set operation](https://flitbit.github.io/json-ptr/classes/_src_pointer_.jsonpointer.htmlset) when the force flag is set to true. The function recursively set the property in the target object, however it does not properly check the key being set, leading to a prototype pollution.
Affected packages (1)
- npm/json-ptrfrom 0, < 2.1.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
References (8)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-7766
- WEBhttps://github.com/418sec/json-ptr/pull/3
- WEBhttps://github.com/flitbit/json-ptr/blob/master/src/util.ts%23L174
- WEBhttps://github.com/flitbit/json-ptr/commit/2539e3494c80af1eef24f0f433654a61f255f011
- WEBhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1038396
- WEBhttps://snyk.io/vuln/SNYK-JS-JSONPTR-1016939
- WEBhttps://www.huntr.dev/bounties/2-npm-json-ptr
- WEBhttps://www.npmjs.com/package/json-ptr