Missing Authentication Vulnerability in IceCMS Affects User Management
CVE-2026-111673

9.3CRITICAL

Key Information:

Vendor

Thecosy

Status
Vendor
CVE Published:
16 October 2026

What is CVE-2026-111673?

IceCMS versions up to 4.1.5 are exposed to a vulnerability that allows unauthenticated attackers to gain unauthorized access to user accounts. This flaw arises from the exclusion of /User/** in the Shiro JWT filter, which permits attackers to send PUT requests to the /User/updateUser endpoint. Such requests can modify user roles and passwords, leading to potential full account takeovers, including that of administrative accounts.

Affected Version(s)

IceCMS 0 <= 4.1.5

References

CVSS V4

Score:
9.3
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

hieuPenguinnn
.