CVE-2023-50455

7.5 highEPSS 0.7%

High (7.5) in zammad zammad. EPSS 0.7% chance of exploitation in the next 30 days.

An issue was discovered in Zammad before 6.2.0. Due to lack of rate limiting in the "email address verification" feature, an attacker could send many requests for a known address to cause Denial Of Service (generation of many emails, which would also spam the victim).

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
CWE: CWE-770
Published: 2023-12-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

zammad:zammad

References

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

Check your stack JSON