Cyber Posture

CVE-2021-47956

HighPublic PoC

Published: 16 May 2026

Published
16 May 2026
Modified
16 May 2026
KEV Added
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Patch
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CVSS Score 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS Score N/A
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-47956 is a high-severity SQL Injection (CWE-89) vulnerability in Egavilanmedia (inferred from references). Its CVSS base score is 8.2 (High).

Operationally, it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-89

Penetration testing uses SQL injection payloads against database interfaces, identifying and supporting fixes for SQL injection weaknesses.

SI-10 Information Input Validation
addresses: CWE-89

Validates query inputs to prevent SQL syntax or command manipulation.

NVD Description

EgavilanMedia PHPCRUD 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the firstname parameter. Attackers can send POST requests to insert.php with malicious firstname values to extract sensitive database information.

Deeper analysisAI

Automated synthesis unavailable for this CVE.

Details

CWE(s)
CWE-89

Affected Products

Egavilanmedia
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inferred from references and description; NVD did not file a CPE for this CVE

References