CVE-2021-40909
9.6 · CRITICALOverview
CVE-2021-40909 is a critical-severity vulnerability affecting php_crud_without_refresh\/reload_using_ajax_and_datatables_tutorial_project php_crud_without_refresh\/reload_using_ajax_and_datatables_tutorial. It was published on January 24, 2022 and has a CVSS 3.1 base score of 9.6 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from php_crud_without_refresh\/reload_using_ajax_and_datatables_tutorial_project. Update php_crud_without_refresh\/reload_using_ajax_and_datatables_tutorial to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
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Frequently Asked Questions
What is CVE-2021-40909?
CVE-2021-40909 is a critical-severity vulnerability affecting php_crud_without_refresh\/reload_using_ajax_and_datatables_tutorial_project php_crud_without_refresh\/reload_using_ajax_and_datatables_tutorial. It was published on January 24, 2022 and has a CVSS 3.1 base score of 9.6 (CRITICAL).
How severe is CVE-2021-40909?
This vulnerability has a CVSS 3.1 base score of 9.6, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-40909?
Check the references section for vendor advisories and patches from php_crud_without_refresh\/reload_using_ajax_and_datatables_tutorial_project. Update php_crud_without_refresh\/reload_using_ajax_and_datatables_tutorial to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-40909?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-40909 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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