CVE-2021-23682

Name: CVE-2021-23682
Creator: NVD / NIST
Published: 2022-02-16T17:15:10.713+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.08%

Last modified Jun 17, 2026

CVE-2021-23682 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. This affects the package litespeed.js before 0.3.12; the package appwrite/server-ce from 0.12.0 and before 0.12.2, before 0.11.1. When parsing the query string in the getJsonFromUrl function, the key that is set in the result object is not properly sanitized leading to a Prototype Pollution vulnerability.. EPSS estimates a 2.08% chance of exploitation in the next 30 days.

Description

This affects the package litespeed.js before 0.3.12; the package appwrite/server-ce from 0.12.0 and before 0.12.2, before 0.11.1. When parsing the query string in the getJsonFromUrl function, the key that is set in the result object is not properly sanitized leading to a Prototype Pollution vulnerability.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.08%

79.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1321

Affected Software

Vendor	Product	Versions
Appwrite	Appwrite	< 0.11.1
Appwrite	Appwrite	>= 0.12.0, < 0.12.2
Litespeed.Js Project	Litespeed.Js	< 0.3.12

References

https://github.com/appwrite/appwrite/pull/2778Patch, Third Party Advisory
https://github.com/appwrite/appwrite/releases/tag/0.11.1Release Notes, Third Party Advisory
https://github.com/appwrite/appwrite/releases/tag/0.12.2Release Notes, Third Party Advisory
https://github.com/litespeed-js/litespeed.js/pull/18Patch, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-LITESPEEDJS-2359250Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-PHP-APPWRITESERVERCE-2401820Exploit, Third Party Advisory
https://github.com/appwrite/appwrite/pull/2778Patch, Third Party Advisory
https://github.com/appwrite/appwrite/releases/tag/0.11.1Release Notes, Third Party Advisory
https://github.com/appwrite/appwrite/releases/tag/0.12.2Release Notes, Third Party Advisory
https://github.com/litespeed-js/litespeed.js/pull/18Patch, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-LITESPEEDJS-2359250Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-PHP-APPWRITESERVERCE-2401820Exploit, Third Party Advisory

Timeline

Published: Feb 16, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23682?

How severe is CVE-2021-23682?

CVE-2021-23682 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.08% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23682?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-23682?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST