Medium severity · published Jan 30, 2026
CVE-2020-37051
Online-Exam-System 2015 - 'feedback' SQL Injection
5.3
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ON
Online-Exam-System · sunnygkp10
2015 · source: vendor
ON
Online-exam-system- · Sunnygkp10
2015 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-37051
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-37051
Product
https://github.com/sunnygkp10/Online-Exam-System-.git
Exploit
https://www.exploit-db.com/exploits/48560
Broken Link
https://www.vulncheck.com/advisories/online-exam-system-feedback-sql-injection
More from Online-Exam-System
9.8
CVE-2020-37057
Online-Exam-System 2015 - 'fid' SQL Injection