cve/2021/CVE-2021-20353.md

### [CVE-2021-20353](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20353)
![](https://img.shields.io/static/v1?label=Product&message=WebSphere%20Application%20Server&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Obtain%20Information&color=brighgreen)

### Description

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 194882.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/AdeliaNitzsche/Java-Deserialization-Cheat-Sheet
- https://github.com/BrittanyKuhn/javascript-tutorial
- https://github.com/GrrrDog/Java-Deserialization-Cheat-Sheet
- https://github.com/mishmashclone/GrrrDog-Java-Deserialization-Cheat-Sheet
- https://github.com/r00t4dm/r00t4dm