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CVE-2020-37051: Online-Exam-System 2015 - 'feedback' SQL Injection

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-30 · updated 2026-06-17
• Weakness: CWE-89

Description

Online-Exam-System 2015 contains a time-based blind SQL injection vulnerability in the feedback form that allows attackers to extract database password hashes. Attackers can exploit the 'feed.php' endpoint by crafting malicious payload requests that use time delays to systematically enumerate user password characters.

Affected products

• sunnygkp10 Online-Exam-System: 2015

References

• https://github.com/sunnygkp10/Online-Exam-System-.git
• https://www.exploit-db.com/exploits/48560
• https://www.vulncheck.com/advisories/online-exam-system-feedback-sql-injection

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