Critical severity · published Apr 14, 2021
CVE-2021-27130
Online Reviewer System 1.0 contains a SQL injection vulnerability through authentication bypass, which may lead to a reverse shell upload
9.8
CVSS
2.2%
EPSS
No
On KEV
Description
Online Reviewer System 1.0 contains a SQL injection vulnerability through authentication bypass, which may lead to a reverse shell upload.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OR
Online Reviewer System · Janobe
1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27130
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27130
Exploit
https://packetstormsecurity.com/files/161219/Online-Reviewer-System-1.0-SQL-Injection-Shell-Upload.html
More from Online Reviewer System
9.8
CVE-2023-2596
A vulnerability was found in SourceCodester Online Reviewer System 1.0 and classified as critical
9.8
CVE-2021-41646
Remote Code Execution (RCE) vulnerability exists in Sourcecodester Online Reviewer System 1.0 by uploading a maliciously crafted PHP file that bypasses the image upload filters
2.7
CVE-2026-36919
Sourcecodester Online Reviewer System v1.0 is vulnerale to SQL Injection in the file /system/system/admins/assessments/examproper/exam-update.php
2.7
CVE-2026-36920
Sourcecodester Online Reviewer System v1.0 is vulnerable to SQL Injection in the file /system/system/admins/assessments/examproper/questions-view.php