Medium severity · published Dec 28, 2020
CVE-2020-26034
An account-enumeration issue was discovered in Zammad before 3.4.1
4.3
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZA
Zammad · Zammad
1.0.0 before 3.4.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-26034
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-26034
Vendor Advisory
https://zammad.com/news/security-advisory-zaa-2020-14
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