CVE-2021-47956

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.

CVSS v4.0

8.8 HIGHCVSS: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

CVSS v3.1

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

EPSS

0.28% chance of exploitation in the next 30 days, 20th percentile

Published

2026-05-16

Updated

2026-07-28

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2021-47955
• CVE-2021-47957
• CVE-2021-47954
• CVE-2021-47958
• CVE-2021-47953
• CVE-2021-47959