CVE-2026-30877: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in baserproject basercms
baserCMS is a website development framework. Prior to version 5.2.3, there is an OS command injection vulnerability in the update functionality. Due to this issue, an authenticated user with administrator privileges in baserCMS can execute arbitrary OS commands on the server with the privileges of the user account running baserCMS. This issue has been patched in version 5.2.3.
AI Analysis
Technical Summary
CVE-2026-30877 is an OS command injection vulnerability (CWE-78) in baserCMS before version 5.2.3. It arises from improper neutralization of special elements in OS commands within the update functionality. An attacker with administrator privileges can execute arbitrary OS commands on the server, potentially compromising the system. The vulnerability is fixed in baserCMS 5.2.3.
Potential Impact
Successful exploitation allows an authenticated administrator to execute arbitrary OS commands on the server with the permissions of the baserCMS user account. This can lead to full system compromise, including unauthorized data access, modification, or denial of service. The vulnerability affects confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Upgrade baserCMS to version 5.2.3 or later, where this vulnerability has been patched. No other mitigations are indicated by the vendor advisory. Ensure that only trusted administrators have access to the baserCMS administration interface.
CVE-2026-30877: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in baserproject basercms
Description
baserCMS is a website development framework. Prior to version 5.2.3, there is an OS command injection vulnerability in the update functionality. Due to this issue, an authenticated user with administrator privileges in baserCMS can execute arbitrary OS commands on the server with the privileges of the user account running baserCMS. This issue has been patched in version 5.2.3.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-30877 is an OS command injection vulnerability (CWE-78) in baserCMS before version 5.2.3. It arises from improper neutralization of special elements in OS commands within the update functionality. An attacker with administrator privileges can execute arbitrary OS commands on the server, potentially compromising the system. The vulnerability is fixed in baserCMS 5.2.3.
Potential Impact
Successful exploitation allows an authenticated administrator to execute arbitrary OS commands on the server with the permissions of the baserCMS user account. This can lead to full system compromise, including unauthorized data access, modification, or denial of service. The vulnerability affects confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Upgrade baserCMS to version 5.2.3 or later, where this vulnerability has been patched. No other mitigations are indicated by the vendor advisory. Ensure that only trusted administrators have access to the baserCMS administration interface.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-06T00:04:56.699Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69cb1e82e6bfc5ba1d9722b2
Added to database: 3/31/2026, 1:08:18 AM
Last enriched: 4/7/2026, 6:37:08 AM
Last updated: 5/15/2026, 10:56:00 AM
Views: 92
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