CVE-2020-26034 : An account-enumeration issue was discovered in Zammad before 3.4.1. The Create U

An account-enumeration issue was discovered in Zammad before 3.4.1. The Create User functionality is implemented in a way that would enable an anonymous user to guess valid user email addresses. The application responds differently depending on whether the input supplied was recognized as associated with a valid user.

Published 2020-12-28 08:15:11

Updated 2020-12-30 15:08:42

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2020-26034

Zammad » Zammad
Versions from including (>=) 1.0.0 and before (<) 3.4.1
cpe:2.3:a:zammad:zammad:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-26034

EPSS FAQ

0.05%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 21 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-26034

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:P/I:N/A:N	8.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
4.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N	2.8	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: None Availability: None

References for CVE-2020-26034

https://zammad.com/news/security-advisory-zaa-2020-14

Zammad Security Advisory ZAA-2020-14
Vendor Advisory

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Vulnerability Details : CVE-2020-26034

Products affected by CVE-2020-26034

Exploit prediction scoring system (EPSS) score for CVE-2020-26034

CVSS scores for CVE-2020-26034

References for CVE-2020-26034