CVE-2012-0911 — AI Deep Analysis Summary

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

🚨 **Essence**: Remote PHP Code Execution via `unserialize()`. 💥 **Consequences**: Attackers inject malicious PHP code. This allows full control over the app and underlying system. 📉 High impact.

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: Improper handling of `unserialize()`. 🔍 **Flaw**: Lack of input validation/sanitization before deserialization. Allows arbitrary object injection. ⚠️ Critical flaw.

Q: Who is affected? (Versions/Components)

📦 **Affected**: Tiki Wiki CMS Groupware. 📅 **Versions**: Pre-8.4. ⚠️ **Note**: Other versions *may* be affected. Check your specific build. 🕵️♂️

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

👑 **Privileges**: Arbitrary PHP code execution. 📂 **Data**: Full application control. 💻 **System**: Potential OS-level compromise. 🚫 No restrictions on attacker actions.

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

🔓 **Auth**: Remote (No authentication required). ⚙️ **Config**: Standard installation. 🎯 **Threshold**: LOW. Easy to exploit remotely. 🏃♂️ Fast attack vector.

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

💣 **Public Exp**: YES. 📂 **Source**: Exploit-DB #19630. 🌐 **Status**: Wild exploitation possible. PoCs exist. ⚠️ High risk.

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

🔍 **Check**: Scan for Tiki Wiki CMS. 📊 **Version**: Verify if < 8.4. 🛠️ **Tool**: Use vulnerability scanners detecting `unserialize` flaws. 🧐 Monitor logs for injection attempts.

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

✅ **Fixed**: YES. 📦 **Patch**: Upgrade to Tiki Wiki CMS Groupware 8.4+. 🔗 **Ref**: Official Tiki updates (Article 191). 🔄 Update immediately.

Q: What if no patch? (Workaround)

🚧 **Workaround**: If no patch, restrict access. 🔒 **Mitigation**: WAF rules blocking `unserialize` inputs. 🚫 **Limit**: Disable unnecessary features. ⚠️ Not a full fix.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: CRITICAL. 🚨 **Priority**: P1. ⏳ **Action**: Patch NOW. Remote code execution is severe. 🏃♀️ Do not delay.

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**: Remote PHP Code Execution via `unserialize()`. <br>💥 **Consequences**: Attackers inject malicious PHP code. This allows full control over the app and underlying system. 📉 High impact.

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: Improper handling of `unserialize()`. <br>🔍 **Flaw**: Lack of input validation/sanitization before deserialization. Allows arbitrary object injection. ⚠️ Critical flaw.

Q3Who is affected? (Versions/Components)

📦 **Affected**: Tiki Wiki CMS Groupware. <br>📅 **Versions**: Pre-8.4. <br>⚠️ **Note**: Other versions *may* be affected. Check your specific build. 🕵️‍♂️

Q4What can hackers do? (Privileges/Data)

👑 **Privileges**: Arbitrary PHP code execution. <br>📂 **Data**: Full application control. <br>💻 **System**: Potential OS-level compromise. 🚫 No restrictions on attacker actions.

Q5Is exploitation threshold high? (Auth/Config)

🔓 **Auth**: Remote (No authentication required). <br>⚙️ **Config**: Standard installation. <br>🎯 **Threshold**: LOW. Easy to exploit remotely. 🏃‍♂️ Fast attack vector.

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

💣 **Public Exp**: YES. <br>📂 **Source**: Exploit-DB #19630. <br>🌐 **Status**: Wild exploitation possible. PoCs exist. ⚠️ High risk.

Q7How to self-check? (Features/Scanning)

🔍 **Check**: Scan for Tiki Wiki CMS. <br>📊 **Version**: Verify if < 8.4. <br>🛠️ **Tool**: Use vulnerability scanners detecting `unserialize` flaws. 🧐 Monitor logs for injection attempts.

Q8Is it fixed officially? (Patch/Mitigation)

✅ **Fixed**: YES. <br>📦 **Patch**: Upgrade to Tiki Wiki CMS Groupware 8.4+. <br>🔗 **Ref**: Official Tiki updates (Article 191). 🔄 Update immediately.

Q9What if no patch? (Workaround)

🚧 **Workaround**: If no patch, restrict access. <br>🔒 **Mitigation**: WAF rules blocking `unserialize` inputs. <br>🚫 **Limit**: Disable unnecessary features. ⚠️ Not a full fix.

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: CRITICAL. <br>🚨 **Priority**: P1. <br>⏳ **Action**: Patch NOW. Remote code execution is severe. 🏃‍♀️ Do not delay.

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