Unrestricted File Upload Vulnerability in WidzialniCMS by Widzialni
CVE-2026-110469

10CRITICAL

Key Information:

Vendor

Fundacja Widzialni

Status
Widzialnicms
Vendor
CVE Published:
9 November 2026

What is CVE-2026-110469?

WidzialniCMS has a serious vulnerability located in the /panel/upload.php endpoint that allows unauthorized users to perform unrestricted file uploads. An attacker can exploit weak permission verification on the uploadPath parameter leading to the potential upload of arbitrary files to any location on the server. This can result in unauthorized remote code execution, posing a significant threat to the security of the affected system. Users are advised to upgrade to version 2.5 or later to mitigate this vulnerability.

Affected Version(s)

WidzialniCMS 0 < 2.5

References

https://cert.pl/posts/2026/11/CVE-2026-110468
third-party-advisory
https://widzialni.org/funkcjonalnosci-widzialni-cms,sd,mg...
product

CVSS V4

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kamil Szczurowski
Robert Kruczek
.