ByteOS Network

NVD Vulnerability Details :

CVE-2021-47956

Received

Source-disclosure@vulncheck.com

Published At-16 May, 2026 | 16:16

Updated At-16 May, 2026 | 16:16

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	4.0	8.8	HIGH	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary	3.1	8.2	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Type: Secondary

Version: 4.0

Base score: 8.8

Base severity: HIGH

Vector:

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Type: Primary

Version: 3.1

Base score: 8.2

Base severity: HIGH

Vector:

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

Weaknesses

CWE ID	Type	Source
CWE-89	Primary	disclosure@vulncheck.com

CWE ID: CWE-89

Type: Primary

Source: disclosure@vulncheck.com

References

Hyperlink	Source	Resource
https://egavilanmedia.com	disclosure@vulncheck.com	N/A
https://egavilanmedia.com/crud-operation-with-php-mysql-bootstrap-and-dompdf/	disclosure@vulncheck.com	N/A
https://www.exploit-db.com/exploits/49878	disclosure@vulncheck.com	N/A
https://www.vulncheck.com/advisories/egavilanmedia-phpcrud-sql-injection-via-firstname	disclosure@vulncheck.com	N/A