Denial Of Service Vulnerability in Zammad by Zammad Inc.
CVE-2023-50455

7.5HIGH

Key Information:

Vendor

Zammad

Status
Zammad
Vendor
CVE Published:
10 December 2023

What is CVE-2023-50455?

A flaw in Zammad versions prior to 6.2.0 allows attackers to exploit the email address verification feature by sending a high volume of requests for a single email address. This lack of rate limiting can lead to Denial of Service, overwhelming the target with numerous verification emails, which not only clogs the server but also spams the victim's inbox.

References

https://zammad.com/en/advisories/zaa-2023-06

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.