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HIGHCVE-2026-29002Published Modified CNA VulnCheck

CVE-2026-29002: CouchCMS Privilege Escalation via f_k_levels_list Parameter

CouchCMS contains a privilege escalation vulnerability that allows authenticated Admin-level users to create SuperAdmin accounts by tampering with the f_k_levels_list parameter in user creation requests. Attackers can modify the parameter value from 4 to 10 in the HTTP request body to bypass authorization validation and gain full application control, circumventing restrictions on SuperAdmin account creation and privilege assignment.

Metrics

CVSS v4.0
8.6
Severity
HIGH
Fixed in
Affected Products
1
Affected packages
  • CouchCMS / CouchCMS
    ≤ 2.4.0
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N