CVE-2015-7858 — AI Deep Analysis Summary

Q: What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: A critical SQL Injection (SQLi) flaw in Joomla! CMS. 💥 **Consequences**: Remote attackers can execute arbitrary SQL commands, potentially compromising the entire database integrity.

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: Improper input validation in the Content History component. ⚠️ **Flaw**: Allows untrusted data to be concatenated into SQL queries without sanitization, leading to code execution.

Q: Who is affected? (Versions/Components)

📦 **Affected**: Joomla! versions **3.2 through 3.4.4** (exclusive of 3.4.4). 🌐 **Component**: The Content History feature within the CMS core.

Q: What can hackers do? (Privileges/Data)

🕵️ **Attacker Actions**: Execute arbitrary SQL commands. 🔓 **Impact**: Access, modify, or delete sensitive data; potentially achieve Remote Code Execution (RCE) via database functions.

Q: Is exploitation threshold high? (Auth/Config)

📉 **Threshold**: **Low**. 🌍 **Access**: Remote exploitation is possible. No authentication required to trigger the initial injection vector in many configurations.

Q: Is there a public Exp? (PoC/Wild Exploitation)

💣 **Public Exp?**: **Yes**. 📜 **Evidence**: Multiple PoCs and Metasploit modules (e.g., `joomla_contenthistory_sqli_rce`) are available on PacketStorm and Rapid7.

Q: How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for Joomla! versions < 3.4.4. 🧪 **Test**: Target the Content History API endpoints with SQL injection payloads (e.g., `' OR 1=1--`). Check for error-based responses.

Q: Is it fixed officially? (Patch/Mitigation)

✅ **Fixed**: **Yes**. 🔧 **Solution**: Upgrade to **Joomla! 3.4.4** or later. The vendor patched the input validation in the Content History module.

Q: What if no patch? (Workaround)

🚧 **No Patch Workaround**: Disable the Content History component if possible. 🛡️ **Defense**: Implement strict WAF rules to block SQL injection patterns in POST requests targeting history-related URLs.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. ⏳ **Priority**: Patch immediately. Public exploits exist, and the impact includes full database compromise. Do not delay remediation.

Updated May 08, 2026

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: A critical SQL Injection (SQLi) flaw in Joomla! CMS. <br>💥 **Consequences**: Remote attackers can execute arbitrary SQL commands, potentially compromising the entire database integrity.

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: Improper input validation in the Content History component. <br>⚠️ **Flaw**: Allows untrusted data to be concatenated into SQL queries without sanitization, leading to code execution.

Q3Who is affected? (Versions/Components)

📦 **Affected**: Joomla! versions **3.2 through 3.4.4** (exclusive of 3.4.4). <br>🌐 **Component**: The Content History feature within the CMS core.

Q4What can hackers do? (Privileges/Data)

🕵️ **Attacker Actions**: Execute arbitrary SQL commands. <br>🔓 **Impact**: Access, modify, or delete sensitive data; potentially achieve Remote Code Execution (RCE) via database functions.

Q5Is exploitation threshold high? (Auth/Config)

📉 **Threshold**: **Low**. <br>🌍 **Access**: Remote exploitation is possible. No authentication required to trigger the initial injection vector in many configurations.

Q6Is there a public Exp? (PoC/Wild Exploitation)

💣 **Public Exp?**: **Yes**. <br>📜 **Evidence**: Multiple PoCs and Metasploit modules (e.g., `joomla_contenthistory_sqli_rce`) are available on PacketStorm and Rapid7.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for Joomla! versions < 3.4.4. <br>🧪 **Test**: Target the Content History API endpoints with SQL injection payloads (e.g., `' OR 1=1--`). Check for error-based responses.

Q8Is it fixed officially? (Patch/Mitigation)

✅ **Fixed**: **Yes**. <br>🔧 **Solution**: Upgrade to **Joomla! 3.4.4** or later. The vendor patched the input validation in the Content History module.

Q9What if no patch? (Workaround)

🚧 **No Patch Workaround**: Disable the Content History component if possible. <br>🛡️ **Defense**: Implement strict WAF rules to block SQL injection patterns in POST requests targeting history-related URLs.

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. <br>⏳ **Priority**: Patch immediately. Public exploits exist, and the impact includes full database compromise. Do not delay remediation.

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