CVE-2026-30877— baserCMS: OS Command Injection in the baserCMS Update Functionality
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I. Basic Information for CVE-2026-30877
Vulnerability Information
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Vulnerability Title
baserCMS: OS Command Injection in the baserCMS Update Functionality
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
baserCMS 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
baserCMS是baserCMS团队的一套企业级内容管理系统（CMS）。 baserCMS 5.2.3之前版本存在操作系统命令注入漏洞，该漏洞源于更新功能存在OS命令注入，可能导致执行任意OS命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| baserproject | basercms | < 5.2.3 | - |
II. Public POCs for CVE-2026-30877
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 8086 chars
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III. Intelligence Information for CVE-2026-30877
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- 2026/03/26 baserCMSにXSSをはじめとする複数の脆弱性x_refsource_MISC
- Release baserCMS 5.2.3 リリース · baserproject/basercms · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-30877
Same Patch Batch · baserproject · 2026-03-31 · 9 CVEs total
| CVE-2026-21861 | 9.1 CRITICAL | baserCMS: OS Command Injection Leading to Remote Code Execution (RCE) |
| CVE-2025-32957 | 8.7 HIGH | baserCMS: unsafe File Upload Leading to Remote Code Execution (RCE) |
| CVE-2026-30940 | 7.2 HIGH | baserCMS: Path Traversal in Theme File API Leads to Arbitrary File Write and RCE |
| CVE-2026-32734 | 7.1 HIGH | baserCMS: Multiple vulnerabilities in baserCMS |
| CVE-2026-30878 | 5.3 MEDIUM | baserCMS: Mail Form Acceptance Bypass via Public API |
| CVE-2026-27697 | baserCMS: SQL injection vulnerability in blog post | |
| CVE-2026-30880 | baserCMS: OS command injection vulnerability in installer | |
| CVE-2026-30879 | baserCMS: Cross-site scripting vulnerability in blog post |
IV. Related Vulnerabilities
Same product: basercms
- CVE-2026-32734
baserCMS: Multiple vulnerabilities in baserCMS - CVE-2026-30879
baserCMS: Cross-site scripting vulnerability in blog post - CVE-2026-30940
baserCMS: Path Traversal in Theme File API Leads to Arbitrar - CVE-2026-30878
baserCMS: Mail Form Acceptance Bypass via Public API - CVE-2026-30880
baserCMS: OS command injection vulnerability in installer
Same vendor: baserproject
- CVE-2026-32734
baserCMS: Multiple vulnerabilities in baserCMS - CVE-2026-30879
baserCMS: Cross-site scripting vulnerability in blog post - CVE-2026-30940
baserCMS: Path Traversal in Theme File API Leads to Arbitrar - CVE-2026-30878
baserCMS: Mail Form Acceptance Bypass via Public API - CVE-2026-30880
baserCMS: OS command injection vulnerability in installer
Same weakness: CWE-78
- CVE-2026-8273
D-Link DNS-320 system_mgr.cgi cgi_merge_user os command inje - CVE-2026-8272
D-Link DNS-320 webfile_mgr.cgi chown os command injection - CVE-2026-8271
D-Link DNS-320 network_mgr.cgi cgi_upnp_edit os command inje - CVE-2026-8265
Tenda AC6 httpd getLogFile get_log_file os command injection - CVE-2026-8264
Tenda AC6 httpd WifiApScan formWifiApScan os command injecti
V. Comments for CVE-2026-30877
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