CVE-2021-47956

high

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.

References

https://www.vulncheck.com/advisories/egavilanmedia-phpcrud-sql-injection-via-firstname

https://www.exploit-db.com/exploits/49878

https://egavilanmedia.com/crud-operation-with-php-mysql-bootstrap-and-dompdf/

https://egavilanmedia.com

Details

Source: Mitre, NVD

Published: 2026-05-16

Updated: 2026-05-16

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:N

Severity: High

CVSS v3

Base Score: 8.2

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

Severity: High

CVSS v4

Base Score: 8.8

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

Severity: High