CVE-2026-30880

baserCMS: OS command injection vulnerability in installer

Critical9.2EPSS 2.1%

Published: 31 Mar 2026
Updated: 31 Mar 2026
Reserved: 6 Mar 2026
Assigned by: GitHub_M

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.

Scores

CVSS scores of CVE-2026-30880, by who scored it
Scored by	CVSS	Score	Vector
GitHub_MCNA (assigner)	4.0	Critical9.2	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
NVDNVD · Analyzed	4.0	Critical9.2	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS (exploitation in 30 days): 2.1% · top 19% of all CVEs (6 Nov 2026)
CISA SSVC: Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.2.

Weakness

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (opens in a new tab)All about CWE-78 and its CVEs

Affected products

baserproject · basercms
- affected < 5.2.3

Affected packages

From reviewed advisories of the GitHub Advisory Database.

Packagistbaserproject/basercmsGHSA-6hpg-8rx3-cwgv (opens in a new tab)

References (3)

https://github.com/baserproject/basercms/security/advisories/GHSA-6hpg-8rx3-cwgv (opens in a new tab)x_refsource_CONFIRM
https://basercms.net/security/JVN_20837860 (opens in a new tab)x_refsource_MISC
https://github.com/baserproject/basercms/releases/tag/5.2.3 (opens in a new tab)x_refsource_MISC

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

[![CVE-2026-30880](https://trackcve.app/badge/CVE-2026-30880.svg)](https://trackcve.app/cve/CVE-2026-30880)

Record last updated 31 Mar 2026, 15:27 UTC.