What’s Vulnerable › Vulnerabilities

CVE-2021-42664

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-11-05 · updated 2026-06-17
• Weakness: CWE-79

Description

A Stored Cross Site Scripting (XSS) Vulneraibiilty exists in Sourcecodester Engineers Online Portal in PHP via the (1) Quiz title and (2) quiz description parameters to add_quiz.php. An attacker can leverage this vulnerability in order to run javascript commands on the web server surfers behalf, which can lead to cookie stealing and more.

Affected products

• SourceCodester Engineers Online Portal: 1.0

References

• http://packetstormsecurity.com/files/164618/Engineers-Online-Portal-1.0-SQL-Injection.html
• https://github.com/TheHackingRabbi/CVE-2021-42664
• https://www.exploit-db.com/exploits/50451
• https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html
• http://packetstormsecurity.com/files/164618/Engineers-Online-Portal-1.0-SQL-Injection.html
• https://github.com/TheHackingRabbi/CVE-2021-42664
• https://www.exploit-db.com/exploits/50451
• https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html

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