What’s Vulnerable › Vulnerabilities

CVE-2021-40909

• Severity: critical (CVSS 9.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-24 · updated 2026-06-17
• Weakness: CWE-79

Description

Cross site scripting (XSS) vulnerability in sourcecodester PHP CRUD without Refresh/Reload using Ajax and DataTables Tutorial v1 by oretnom23, allows remote attackers to execute arbitrary code via the first_name, last_name, and email parameters to /ajax_crud.

Affected products

• Php Crud Without Refresh/Reload Using Ajax And Datatables Tutorial Project Php Crud Without Refresh/Reload Using Ajax And Datatables Tutorial: 1.0

References

• https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/CVE-nu11-10-09102021
• https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/CVE-nu11-10-09102021

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