Unrestricted File Upload Vulnerability in KLiK SocialMediaWebsite by KLiK
CVE-2026-9421

6.9MEDIUM

Key Information:

Vendor

KLiK

Status
Klik Socialmediawebsite
Vendor
CVE Published:
25 May 2026

What is CVE-2026-9421?

A vulnerability in KLiK SocialMediaWebsite version 1.0 allows attackers to exploit the uniqid function in the file upload component (upload.inc.php). This flaw enables unauthorized users to upload arbitrary files, potentially leading to serious security breaches. The vulnerability can be exploited remotely, making it a significant risk given its public disclosure. Users are encouraged to take immediate action to mitigate this security issue.

Affected Version(s)

KLiK SocialMediaWebsite 1.0

References

https://vuldb.com/vuln/365402
vdb-entrytechnical-description
https://vuldb.com/vuln/365402/cti
signaturepermissions-required
https://vuldb.com/submit/813725
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

g111 (VulDB User)
VulDB Vulnerability Moderation Team
.