CVE-2021-4462
Employee Records System v1.0 Arbitrary File Upload RCE
Description
Employee Records System version 1.0 contains an unrestricted file upload vulnerability that allows a remote unauthenticated attacker to upload arbitrary files via the uploadID.php endpoint; uploaded files can be executed because the application does not perform proper server-side validation. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC.
INFO
Published Date :
Nov. 10, 2025, 11:15 p.m.
Last Modified :
Nov. 24, 2025, 12:57 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2021-4462
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | CRITICAL | [email protected] |
Solution
- Validate file types on the server-side.
- Restrict uploaded file types.
- Disable script execution in upload directories.
Public PoC/Exploit Available at Github
CVE-2021-4462 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-4462.
| URL | Resource |
|---|---|
| https://www.exploit-db.com/exploits/49596 | Exploit |
| https://www.sourcecodester.com/php/11393/employee-records-system.html | Product |
| https://www.vulncheck.com/advisories/employees-records-system-arbitrary-file-upload-rce | Third Party Advisory |
| https://www.exploit-db.com/exploits/49596 | Exploit |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-4462 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-4462
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-4462 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-4462 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Nov. 24, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:skittles:employee_records_system:1.0:*:*:*:*:*:*:* Added Reference Type CISA-ADP: https://www.exploit-db.com/exploits/49596 Types: Exploit Added Reference Type VulnCheck: https://www.exploit-db.com/exploits/49596 Types: Exploit Added Reference Type VulnCheck: https://www.sourcecodester.com/php/11393/employee-records-system.html Types: Product Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/employees-records-system-arbitrary-file-upload-rce Types: Third Party Advisory -
CVE Modified by [email protected]
Nov. 20, 2025
Action Type Old Value New Value Changed Description Employee Records System version 1.0 contains an unrestricted file upload vulnerability that allows a remote unauthenticated attacker to upload arbitrary files via the uploadID.php endpoint; uploaded files can be executed because the application does not perform proper server-side validation. Employee Records System version 1.0 contains an unrestricted file upload vulnerability that allows a remote unauthenticated attacker to upload arbitrary files via the uploadID.php endpoint; uploaded files can be executed because the application does not perform proper server-side validation. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 12, 2025
Action Type Old Value New Value Added Reference https://www.exploit-db.com/exploits/49596 -
New CVE Received by [email protected]
Nov. 10, 2025
Action Type Old Value New Value Added Description Employee Records System version 1.0 contains an unrestricted file upload vulnerability that allows a remote unauthenticated attacker to upload arbitrary files via the uploadID.php endpoint; uploaded files can be executed because the application does not perform proper server-side validation. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-434 Added Reference https://www.exploit-db.com/exploits/49596 Added Reference https://www.sourcecodester.com/php/11393/employee-records-system.html Added Reference https://www.vulncheck.com/advisories/employees-records-system-arbitrary-file-upload-rce