CVE-2021-47811 — AI Deep Analysis Summary

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-89** (SQL Injection). 🔍 **Flaw**: The application fails to properly sanitize user input in the `order_by` parameter, allowing malicious SQL commands to execute.

Q: Who is affected? (Versions/Components)

👥 **Affected**: **Grocery Crud** software. 📦 **Version**: Specifically **1.6.4**. 🏢 **Vendor**: Grocerycrud.

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

💀 **Attacker Actions**: 1️⃣ **Read**: Extract sensitive data from the database. 2️⃣ **Modify**: Alter database records. 3️⃣ **Impact**: High Confidentiality & Integrity loss (CVSS C:H, I:H).

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

🔓 **Exploitation Threshold**: **LOW**. 🌐 **Network**: Attack Vector is Network (AV:N). 🔑 **Auth**: No Privileges required (PR:N). 👀 **UI**: No User Interaction needed (UI:N).

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

💣 **Public Exploit**: **YES**. 📂 **Source**: ExploitDB ID **49985** is available. ⚠️ **Risk**: Wild exploitation is possible since PoCs are public.

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

🔍 **Self-Check**: 1️⃣ Scan for **Grocery Crud 1.6.4** instances. 2️⃣ Test the `order_by` parameter for SQL injection responses. 3️⃣ Use scanners detecting **CWE-89** patterns.

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

🩹 **Official Fix**: Check the **Vendor Homepage** (grocerycrud.com) and **Download Page** for updates. 📝 **Advisory**: Refer to VulnCheck Advisory for specific patch details.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. 📊 **CVSS**: High severity (C:H, I:H). ⚡ **Priority**: Immediate patching or mitigation required due to low exploitation barrier and public exploits.

Updated May 08, 2026 CVSS 9.1 · Critical

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**: Grocery Crud 1.6.4 suffers from an **SQL Injection** flaw in the `order_by` parameter.…

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Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-89** (SQL Injection). <br>🔍 **Flaw**: The application fails to properly sanitize user input in the `order_by` parameter, allowing malicious SQL commands to execute.

Q3Who is affected? (Versions/Components)

👥 **Affected**: **Grocery Crud** software. <br>📦 **Version**: Specifically **1.6.4**. <br>🏢 **Vendor**: Grocerycrud.

Q4What can hackers do? (Privileges/Data)

💀 **Attacker Actions**: <br>1️⃣ **Read**: Extract sensitive data from the database. <br>2️⃣ **Modify**: Alter database records. <br>3️⃣ **Impact**: High Confidentiality & Integrity loss (CVSS C:H, I:H).

Q5Is exploitation threshold high? (Auth/Config)

🔓 **Exploitation Threshold**: **LOW**. <br>🌐 **Network**: Attack Vector is Network (AV:N). <br>🔑 **Auth**: No Privileges required (PR:N). <br>👀 **UI**: No User Interaction needed (UI:N).

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

💣 **Public Exploit**: **YES**. <br>📂 **Source**: ExploitDB ID **49985** is available. <br>⚠️ **Risk**: Wild exploitation is possible since PoCs are public.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: <br>1️⃣ Scan for **Grocery Crud 1.6.4** instances. <br>2️⃣ Test the `order_by` parameter for SQL injection responses. <br>3️⃣ Use scanners detecting **CWE-89** patterns.

Q8Is it fixed officially? (Patch/Mitigation)

🩹 **Official Fix**: Check the **Vendor Homepage** (grocerycrud.com) and **Download Page** for updates. <br>📝 **Advisory**: Refer to VulnCheck Advisory for specific patch details.

Q9What if no patch? (Workaround)

🚧 **No Patch? Workaround**: <br>1️⃣ **Input Validation**: Strictly whitelist/sanitize `order_by` inputs. <br>2️⃣ **WAF**: Deploy Web Application Firewall rules to block SQL injection payloads.…

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Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. <br>📊 **CVSS**: High severity (C:H, I:H). <br>⚡ **Priority**: Immediate patching or mitigation required due to low exploitation barrier and public exploits.

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Vulnerability detail Full AI analysis (login) Grocerycrud CWE-89