CVE-2023-31857
CWE-434Published: May 16, 2023· Updated: Jun 17, 2026
Official Description
Sourcecodester Online Computer and Laptop Store 1.0 allows unrestricted file upload and can lead to remote code execution. The vulnerability path is /classes/Users.php?f=save.
Risk Analysis
The Online Computer and Laptop Store v1.0 application allows for unrestricted file uploads, which can lead to remote code execution. This critical vulnerability allows attackers to upload malicious files to the server.
There is no public exploit known for this vulnerability, and it is not in the CISA KEV. It is remotely exploitable with low complexity.
Implement strict file type validation and restrict upload directories to prevent the execution of uploaded scripts. Apply any available updates from the vendor.
Technical Analysis
CVE-2023-31857 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-434)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-31857 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts