What is the CVSS score of CVE-2021-47811?

CVE-2021-47811 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Grocery Crud are affected by CVE-2021-47811?

Organizations using Grocery Crud 1.6.4 face critical risk from CVE-2021-47811, a SQL injection vulnerability rated CVSS 9.1.

Is there a public PoC exploit available for CVE-2021-47811?

Yes, a public proof-of-concept exploit is available for CVE-2021-47811. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2021-47811?

Within 24 hours: Identify all affected systems running the order_by parameter that allows remote attackers to manip and apply vendor patches immediately. Validate that input sanitization is in place for all user-controlled parameters.

Grocery Crud CVE-2021-47811

CRITICAL

SQL Injection (CWE-89)

2026-01-16 disclosure@vulncheck.com

SQLi Grocery Crud

9.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.1 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Feb 02, 2026 - 16:16 vuln.today

Public exploit code

CVE Published

Jan 16, 2026 - 00:16 nvd

CRITICAL 9.1

DescriptionCVE.org

Grocery Crud 1.6.4 contains a SQL injection vulnerability in the order_by parameter that allows remote attackers to manipulate database queries. Attackers can inject malicious SQL code through the order_by[] parameter in POST requests to the ajax_list endpoint to potentially extract or modify database information.

AnalysisAI

Grocery Crud 1.6.4 has a SQL injection vulnerability in the order_by parameter, allowing remote attackers to read, modify, or delete database contents through crafted sort requests.

Technical ContextAI

The order_by parameter in Grocery Crud 1.6.4 is concatenated directly into SQL queries without sanitization. This CWE-89 SQL injection allows attackers to append arbitrary SQL clauses to ORDER BY statements.

RemediationAI

Upgrade Grocery Crud to a patched version. Use parameterized queries and whitelist allowed sort columns.

CVE-2021-47811 vulnerability details – vuln.today

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Grocery Crud CVE-2021-47811

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code