What is the CVSS score of CVE-2021-47872?

CVE-2021-47872 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of PHP are affected by CVE-2021-47872?

CVE-2021-47872 presents moderate security risk, a SQL injection vulnerability rated CVSS 7.1.

Is there a public PoC exploit available for CVE-2021-47872?

Yes, a public proof-of-concept exploit is available for CVE-2021-47872. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2021-47872?

Within 7 days: Identify all affected systems running a blind SQL injection vulnerability in the archive.php page and apply vendor patches promptly. Validate that input sanitization is in place for all user-controlled parameters.

PHP CVE-2021-47872

HIGH

SQL Injection (CWE-89)

2026-01-21 disclosure@vulncheck.com

PHP SQLi

7.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 26, 2026 - 15:04 vuln.today

Public exploit code

CVE Published

Jan 21, 2026 - 18:16 nvd

HIGH 7.1

DescriptionCVE.org

SEO Panel versions prior to 4.9.0 contain a blind SQL injection vulnerability in the archive.php page that allows authenticated attackers to manipulate database queries through the 'order_col' parameter. Attackers can use sqlmap to exploit the vulnerability and extract database information by injecting malicious SQL code into the order column parameter.

AnalysisAI

Technical ContextAI

Classified as CWE-89 (SQL Injection). Affects SEO Panel. SEO Panel versions prior to 4.9.0 contain a blind SQL injection vulnerability in the archive.php page that allows authenticated attackers to manipulate database queries through the 'order_col' parameter. Attackers can use sqlmap to exploit the vulnerability and extract database information by injecting malicious SQL code into the order column parameter.

Affected ProductsAI

Product: SEO Panel. Versions: up to 4.9.0.

RemediationAI

Monitor vendor advisories for a patch. Use parameterized queries. Implement input validation. Restrict network access to the affected service where possible.