CVE-2021-4462

CRITICAL
Published Nov 10, 2025 Modified Nov 24, 2025 CWE-434

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.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-434 Unrestricted Upload

Affected Products

Vendor Product
skittles employee_records_system

References

Frequently Asked Questions

What is CVE-2021-4462? +
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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2021-4462? +
CVE-2021-4462 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2021-4462? +
CVE-2021-4462 affects products from skittles, specifically: employee_records_system. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2021-4462? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

Don't wait for an exploit

Scan your website for vulnerabilities like CVE-2021-4462 — free, no signup required.

Start Free Scan