VulnerabilityAnalyzed

CVE-2026-30880

Prior to version 5.2.3, baserCMS has an OS command injection vulnerability in the installer.

CRITICAL 9.2EPSS 2.03%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.03%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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 4.0: 9.2 CRITICALCVSS: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/M
EPSS: 2.03% probability · 81th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-78
Affected: basercms/basercms
Source: security-advisories@github.com

EPSS trend

EPSS 2.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

https://basercms.net/security/JVN_20837860Vendor Advisory
https://github.com/baserproject/basercms/releases/tag/5.2.3Release Notes
https://github.com/baserproject/basercms/security/advisories/GHSA-6hpg-8rx3-cwgvVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.