CVE Feed

    Dashboard / CVE / CVE-2026-54003

    CVE-2026-54003

    Kirby is an open-source content management system. Prior to 4.9.4 and from 5.4.4, Kirby sites with no configured user accounts that run on publicly accessible servers behind a reverse proxy setting the Forwarded, X-Client-IP, or X-Real-IP request header could allow remote attackers to install the Panel and create the first admin user because local-IP checks trusted those headers incorrectly. This issue is fixed in versions 4.9.4 and 5.4.4.

    Published:Jul 9, 2026
    Last Modified:Jul 9, 2026
    EPS:Jul 9, 2026
    EPSS Score:
    CVSS Score:9.1

    Affected Products

    Vendor
    Getkirby
    Product
    Kirby

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-75594 (CVSS 8.2) — Kirby is an open-source content management system. Prior to 4.9.5 and 5.5.2, depending on the release line, Ki…
    CVE-2026-75592 (CVSS 6.9) — Kirby is an open-source content management system. Prior to 4.9.5 and 5.5.2, depending on the release line, Ki…
    CVE-2026-71415 (CVSS 7.1) — Kirby is an open-source content management system. From 5.0.0 until 5.5.2, Kirby's REST API chunk upload handl…
    CVE-2026-69127 (CVSS 6.9) — Kirby is an open-source content management system. Prior to 4.9.5 and from 5.0.0 through 5.5.1, the REST API e…
    CVE-2026-45368 (CVSS 8.4) — Kirby is an open-source content management system. In versions prior to 4.9.1 and 5.4.1, the underlying URL me…
    CVE-2026-45334 (CVSS 5.3) — Kirby is an open-source content management system. In versions prior to 4.9.1 and 5.4.1, the content-locking f…
    CVE-2026-44175 (CVSS 8.5) — Kirby is an open-source content management system. In versions prior to 4.9.1 and 5.4.1, Kirby did not securel…
    CVE-2026-44176 (CVSS 6) — Kirby is an open-source content management system. Versions prior to 4.9.1 and 5.4.1 do not check the `pages.a…
    CVE-2026-44177 (CVSS 8.8) — Kirby is an open-source content management system. In versions 5.3.0 and above but prior to 5.4.1, Kirby did n…
    CVE-2026-44174 (CVSS 8.7) — Kirby is an open-source content management system. Prior to 4.9.1 and 5.4.1, Kirby did not validate the model …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High