CVE-2026-53952

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Source

https://cve.org/CVERecord?id=CVE-2026-53952

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53952.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-53952

Aliases

GHSA-rw2c-w4mg-46g4

Published

2026-09-11T19:23:30Z

Modified

2026-09-12T03:46:43Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

GetSimple CMS & GetSimpleCMS-CE have an Unauthenticated Admin Account Creation via Setup Logic Flaw

Details

GetSimple CMS is a content management system (CMS), and GetSimple CMS CE is the community edition of that CMS. A logic flaw in GetSimple CMS (v3.4.0a and below) and GetSimpleCMS-CE (v3.3.22 and below) allows unauthenticated attackers to create a new administrator account. The application features an automated security control designed to delete the sensitive admin/setup.php file post-installation. However, this control is neutralized by a self-exclusion bug within the deletion logic, leaving the setup script accessible for unauthorized account creation even after a legitimate installation is completed. As of time of publication, no known patched versions are available.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-285",
        "CWE-306",
        "CWE-489"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53952.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "last_affected": "3.4.0a"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/getsimplecms-ce/getsimplecms-ce

Affected ranges

Type

GIT

Repo

https://github.com/getsimplecms-ce/getsimplecms-ce

Events

Introduced

Last Affected

5486c10c75111e93404413fea6408f53dbffd930

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "3.3.22"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v3.*

v3.3.16

v3.3.17

v3.3.18.1

v3.3.21

v3.3.22

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53952.json"