Critical severity · published Mar 31, 2026
CVE-2026-30880
baserCMS: OS command injection vulnerability in installer
9.8
CVSS
2%
EPSS
No
On KEV
Description
baserCMS is a website development framework. Prior to version 5.2.3, baserCMS has an OS command injection vulnerability in the installer. This issue has been patched in version 5.2.3.
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)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
basercms · baserproject
< 5.2.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-30880
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-30880
Vendor Advisory
https://basercms.net/security/JVN_20837860
Release Notes
https://github.com/baserproject/basercms/releases/tag/5.2.3
Vendor Advisory
https://github.com/baserproject/basercms/security/advisories/GHSA-6hpg-8rx3-cwgv
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