CVE-2023-31597

MEDIUM

Zammad < 5.4.1 - Incorrect Authorization and Email Verification Bypass

Title source: llm

Description

An issue in Zammad v5.4.0 allows attackers to bypass e-mail verification using an arbitrary address and manipulate the data of the generated user. Attackers are also able to gain unauthorized access to existing tickets.

References (1)

Core 1

Core References

Patch, Vendor Advisory

https://zammad.com/de/advisories/zaa-2023-03

Scores

CVSS v3 6.5

EPSS 0.0043

EPSS Percentile 33.9%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-863

Status published

Products (1)

zammad/zammad < 5.4.1

Published May 18, 2023

Tracked Since Feb 18, 2026