Critical severity · published Feb 3, 2023
CVE-2022-48021
A vulnerability in Zammad v5.3.0 allows attackers to execute arbitrary code or escalate privileges via a crafted message sent to the server
9.8
CVSS
0.9%
EPSS
No
On KEV
Description
A vulnerability in Zammad v5.3.0 allows attackers to execute arbitrary code or escalate privileges via a crafted message sent to the server.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZA
Zammad · Zammad
5.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-48021
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-48021
Vendor Advisory
https://zammad.com/de/advisories/zaa-2022-11
More from Zammad
9.8
CVE-2026-102489
Undisclosed RCE in Zammad v6.3 and higher
7.8
CVE-2026-102490
Local privilege escalation in Zammad v1.5.0 to v7.2.2 installed via DEB or RPM package
9.8
CVE-2022-35490
Zammad 5.2.0 is vulnerable to privilege escalation
9.8
CVE-2021-42090
An issue was discovered in Zammad before 4.1.1
9.8
CVE-2021-42094
An issue was discovered in Zammad before 4.1.1