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Vulnerability record · CVE-2021-42671 · published 5 November 2021

CVE-2021-42671: Engineers online portal project engineers online portal vulnerability

EEngineers Online Portal Project · Engineers Online Portal

An incorrect access control vulnerability exists in Sourcecodester Engineers Online Portal in PHP in nia_munoz_monitoring_system/admin/uploads. An attacker can leverage this vulnerability in order to bypass access controls and access all the files uploaded to the web server without the need of authentication or authorization.

7.5 CVSS 3.1 High EPSS 20% · top 2.7% CWE-425 · CWE-425
7.5CVSS 3.1 base score, v2 5.0
20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

An incorrect access control vulnerability exists in Sourcecodester Engineers Online Portal in PHP in nia_munoz_monitoring_system/admin/uploads. An attacker can leverage this vulnerability in order to bypass access controls and access all the files uploaded to the web server without the need of authentication or authorization.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/TheHackingRabbi/CVE-2021-42671 ExploitThird Party Advisory
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671 ExploitThird Party Advisory
https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html ProductThird Party Advisory
https://github.com/TheHackingRabbi/CVE-2021-42671 ExploitThird Party Advisory
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671 ExploitThird Party Advisory
https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html ProductThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-5281Engineers online portal project engineers online portal sql injection vulnerabilityA vulnerability was found in SourceCodester Engineers Online Portal 1.0. It has been classified as critical. This affects an unknown part of the file…EPSS 0.68%9.8CVE-2023-5282Engineers online portal project engineers online portal sql injection vulnerabilityA vulnerability was found in SourceCodester Engineers Online Portal 1.0. It has been declared as critical. This vulnerability affects unknown code of…EPSS 0.68%9.8CVE-2023-5278Engineers online portal project engineers online portal sql injection vulnerabilityA vulnerability, which was classified as critical, was found in SourceCodester Engineers Online Portal 1.0. Affected is an unknown function of the fi…EPSS 0.73%9.8CVE-2023-5279Engineers online portal project engineers online portal sql injection vulnerabilityA vulnerability has been found in SourceCodester Engineers Online Portal 1.0 and classified as critical. Affected by this vulnerability is an unknown…EPSS 0.68%9.8CVE-2023-5280Engineers online portal project engineers online portal sql injection vulnerabilityA vulnerability was found in SourceCodester Engineers Online Portal 1.0 and classified as critical. Affected by this issue is some unknown functional…EPSS 0.68%9.8CVE-2023-5276Engineers online portal project engineers online portal sql injection vulnerabilityA vulnerability classified as critical was found in SourceCodester Engineers Online Portal 1.0. This vulnerability affects unknown code of the file d…EPSS 0.68%9.8CVE-2023-5277Engineers online portal project engineers online portal unrestricted file upload vulnerabilityA vulnerability, which was classified as critical, has been found in SourceCodester Engineers Online Portal 1.0. This issue affects some unknown proc…EPSS 0.82%9.8CVE-2021-42668Engineers online portal project engineers online portal sql injection vulnerabilityA SQL Injection vulnerability exists in Sourcecodester Engineers Online Portal in PHP via the id parameter in the my_classmates.php web page.. As a r…EPSS 4.7%

Source: NIST National Vulnerability Database (record CVE-2021-42671), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.