cve/2024/CVE-2024-21620.md

### [CVE-2024-21620](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21620)
![](https://img.shields.io/static/v1?label=Product&message=Junos%20OS&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=0%3C%2020.4R3-S10%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-79%20Improper%20Neutralization%20of%20Input%20During%20Web%20Page%20Generation%20('Cross-site%20Scripting')&color=brighgreen)

### Description

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in J-Web of Juniper Networks Junos OS on SRX Series and EX Series allows an attacker to construct a URL that when visited by another user enables the attacker to execute commands with the target's permissions, including an administrator.A specific invocation of the emit_debug_note method in webauth_operation.php will echo back the data it receives.This issue affects Juniper Networks Junos OS on SRX Series and EX Series:  *  All versions earlier than 20.4R3-S10;  *  21.2 versions earlier than 21.2R3-S8;  *  21.4 versions earlier than 21.4R3-S6;  *  22.1 versions earlier than 22.1R3-S5;  *  22.2 versions earlier than 22.2R3-S3;  *  22.3 versions earlier than 22.3R3-S2;  *  22.4 versions earlier than 22.4R3-S1;  *  23.2 versions earlier than 23.2R2;  *  23.4 versions earlier than 23.4R2.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/Ostorlab/KEV