CVE-2026-30877 — AI Deep Analysis Summary

🚨 **Essence**: baserCMS Update Feature allows **OS Command Injection**. <br>💥 **Consequences**: Attackers can execute **arbitrary OS commands** on the server.…

🛡️ **CWE**: **CWE-78** (Improper Neutralization of Special Elements used in an OS Command).…

📦 **Vendor**: baserproject. <br>📦 **Product**: baserCMS. <br>📉 **Affected Versions**: All versions **prior to 5.2.3**. <br>✅ **Fixed In**: Version **5.2.3** and later.

💀 **Privileges**: Commands run with the **web server's privileges** (often root or www-data). <br>📂 **Data Impact**: High.…

🔐 **Auth Required**: **Yes**. The vector indicates **PR:H** (Privileges Required: High). <br>⚙️ **Config**: Attackers must have **authenticated access** to the CMS admin panel or update interface.…

🧪 **Public Exploit**: **No**. The `pocs` field is empty. <br>🌍 **Wild Exploit**: Unlikely to be widespread yet, as it requires authentication.…

🔍 **Self-Check**: Scan for baserCMS instances. <br>📋 **Version Check**: Verify if the installed version is **< 5.2.3**. <br>🛡️ **Access Control**: Ensure only trusted admins have update privileges.…

🔧 **Official Fix**: **Yes**. <br>📥 **Action**: Upgrade to **baserCMS 5.2.3** or later. <br>🔗 **Source**: GitHub Release [5.2.3](https://github.com/baserproject/basercms/releases/tag/5.2.3) and Security Advisory.…

🚧 **No Patch Workaround**: <br>1️⃣ **Restrict Access**: Block admin/update endpoints via **WAF** or **Firewall** (IP whitelisting).…

⚠️ **Urgency**: **High Priority**. <br>📈 **Reason**: CVSS is **High** (9.8+ likely due to S:C/C:H/I:H/A:H). <br>🎯 **Action**: Patch immediately if you have admin access.…