### [CVE-2022-44005](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-44005)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

An issue was discovered in BACKCLICK Professional 5.9.63. Due to the use of consecutive IDs in verification links, the newsletter sign-up functionality is vulnerable to the enumeration of subscribers' e-mail addresses. Furthermore, it is possible to subscribe and verify other persons' e-mail addresses to newsletters without their consent.

### POC

#### Reference
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2022-026.txt
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2022-026.txt
- https://www.syss.de/pentest-blog/vielfaeltige-schwachstellen-in-backclick-professional-syss-2022-026-bis-037
- https://www.syss.de/pentest-blog/vielfaeltige-schwachstellen-in-backclick-professional-syss-2022-026-bis-037

#### Github
No PoCs found on GitHub currently.