PT-2026-29148 · Basercms · Basercms

Ericueda · Published 2026-03-31 · Updated 2026-04-02 · CVE-2026-30877

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions baserCMS versions prior to 5.2.3

Description baserCMS is a website development framework. A security issue exists in the update functionality that allows an authenticated user with administrator privileges to execute arbitrary OS commands on the server with the privileges of the user account running baserCMS. The issue is due to an OS command injection.

Recommendations Update to version 5.2.3 or later.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2026-30877

GHSA-M9G7-RGFC-JCM7

Affected Products

Basercms

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30877.json · Exploit
• https://github.com/baserproject/basercms/security/advisories/GHSA-m9g7-rgfc-jcm7 · Vendor Advisory
• https://basercms.net/security/JVN_20837860 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-30877 · Security Note
• https://osv.dev/vulnerability/CVE-2026-30877 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-m9g7-rgfc-jcm7 · Vendor Advisory
• https://github.com/baserproject/basercms/releases/tag/5.2.3 · Note
• https://github.com/baserproject/basercms · Note
• https://twitter.com/0dayPublishing/status/2039721965796077812 · Twitter Post
• https://twitter.com/CveFindCom/status/2038794205590405393 · Twitter Post
• https://twitter.com/pulsepatchio/status/2039719332520010189 · Twitter Post
• https://twitter.com/TheHackerWire/status/2038787598437740976 · Twitter Post
• https://twitter.com/CVEarity/status/2038898106792878291 · Twitter Post
• https://twitter.com/CVEnew/status/2038916056610455764 · Twitter Post