CVE-2026-29002

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Source
https://cve.org/CVERecord?id=CVE-2026-29002
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-29002.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-29002
Published
2026-04-10T15:11:43.411Z
Modified
2026-07-08T08:12:45.395181937Z
Severity
  • 8.6 (High) CVSS_V4 - 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 CVSS Calculator
Summary
CouchCMS Privilege Escalation via f_k_levels_list Parameter
Details

CouchCMS contains a privilege escalation vulnerability that allows authenticated Admin-level users to create SuperAdmin accounts by tampering with the fklevels_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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "last_affected": "2.4.0"
                }
            ]
        }
    ],
    "cwe_ids": [
        "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29002.json"
}
References

Affected packages

Git / github.com/couchcms/couchcms

Affected ranges

Type
GIT
Repo
https://github.com/couchcms/couchcms
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
cfa2502b1a0e9c911fe2bc501cafd9ad8590c7ed
Database specific 
{
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.4"
        }
    ],
    "cpe": "cpe:2.3:a:couchcms:couchcms:*:*:*:*:*:*:*:*"
}

Affected versions

v1.*
v1.3.5
v1.4
v1.4.5
v1.4.5RC1
v1.4.5RC2
v1.4.7
v2.*
v2.0
v2.1
v2.2
v2.2.1
v2.3
v2.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-29002.json"