CVE-2021-42558: Multiple Cross-Site Scripting in MITRE Caldera# CVE-2021-42558: Multiple Cross-Site Scripting in MITRE Caldera
Caldera (versions <=2.8.1) contains multiple reflected, stored and self XSS vulnerabilities that may be exploited by authenticated and unauthenticated attackers.
### Vendor Disclosure:
The vendor's disclosure for this vulnerability can be found [here](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42558).
### Requirements:
This vulnerability requires:
<br/>
- Some XSSs require valid user credentials
### Proof Of Concept:
More details and the exploitation process can be found in this [PDF](https://github.com/mbadanoiu/CVE-2021-42558/blob/main/Caldera%20-%20CVE-2021-42558.pdf).
### Additional Information:
The XSS vector "1.1. Unauthenticated Stored XSS in Agent" was also found in paralel and fixed by [Daniel "uruwhy" Matthews](https://github.com/uruwhy) in this [Caldera commit](https://github.com/mitre/caldera/commit/7d3dedb8a03cb2fcddbcb292b7ca8b8c31af62e5).
[4.0K] /data/pocs/c9cca8b724a2273698021a9f44bdd4467196ad56
├── [ 25M] Caldera - CVE-2021-42558.pdf
└── [ 953] README.md
0 directories, 2 files