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typo3/cms-backend vulnerabilities

Vulnerabilities published for typo3/cms-backend in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 25

  1. CVE-2026-19418

    High · CVSS 7.3EPSS 0.24%Fix available

    TYPO3 CMS - Broken Access Control in Backend and Install Tool

    The referrer enforcement introduced with TYPO3-CORE-SA-2020-006 (CVE-2020-11069) became ineffective in TYPO3 v13.0, where TYPO3 CMS started serving the backend and Install Tool applications from the site's main entry script instead of the dedicated typo3/ directory. Whether a request originated from the backend or Install Tool itself was determined by comparing the referrer against the directory of the entry script, which since then is the site root. As a consequence, requests originating from any script running on one of the TYPO3 instance's own domains, such as a frontend page, were accepted by backend routes and Install Tool endpoints. A

    typo3/cms-backendPHP
    • Update to 13.4.34
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  2. CVE-2026-47352

    Medium · CVSS 5.3EPSS 0.24%Fix available

    TYPO3 CMS - Broken Access Control in Backend API

    Authenticated backend users were able to retrieve file metadata via several Backend API routes without proper permission checks, allowing access to files outside their permitted file mounts or storages. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.

    typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backendPHP
    • Update to 10.4.57
    • Update to 11.5.51
    • Update to 12.4.46
    • Update to 13.4.31
    • Update to 14.3.3
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  3. CVE-2026-47351

    Medium · CVSS 5.3EPSS 0.24%Fix available

    TYPO3 CMS - Broken Access Control in Clipboard

    Backend users were able to insert arbitrary records and files into the TYPO3 clipboard without proper read permission checks, which allowed users to gather information about records and files they were not authorized to view. This issue affects TYPO3 CMS versions 10.4.0-13.4.30 and 14.0.0-14.3.2.

    typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backendPHP
    • Update to 10.4.57
    • Update to 11.5.51
    • Update to 12.4.46
    • Update to 13.4.31
    • Update to 14.3.3
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  5. CVE-2025-59020

    Medium · CVSS 5.3EPSS 0.31%Fix available

    TYPO3 CMS Allows Broken Access Control in Edit Document Controller

    By exploiting the defVals parameter, attackers could bypass field‑level access checks during record creation in the TYPO3 backend. This gave them the ability to insert arbitrary data into prohibited exclude fields of a database table for which the user already has write permission for a reduced set of fields. This issue affects TYPO3 CMS versions 10.0.0-10.4.54, 11.0.0-11.5.48, 12.0.0-12.4.40, 13.0.0-13.4.22 and 14.0.0-14.0.1.

    typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backendPHP
    • Update to 10.4.55
    • Update to 11.5.49
    • Update to 12.4.41
    • Update to 13.4.23
    • Update to 14.0.2
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  6. CVE-2025-59019

    Medium · CVSS 5.3EPSS 0.24%Fix available

    Information Disclosure via CSV Download

    Missing authorization checks in the CSV download feature of TYPO3 CMS versions 11.0.0‑11.5.47, 12.0.0‑12.4.36, and 13.0.0‑13.4.17 allow backend users to disclose information from arbitrary database tables stored within the users' web mounts without having access to them.

    typo3/cms-backend typo3/cms-backendPHP
    • Update to 12.4.37
    • Update to 13.4.18
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗

  7. CVE-2025-59017

    Medium · CVSS 5.3EPSS 0.3%Fix available

    Broken Access Control in Backend AJAX Routes

    Missing authorization checks in the Backend Routing of TYPO3 CMS versions 9.0.0‑9.5.54, 10.0.0‑10.4.53, 11.0.0‑11.5.47, 12.0.0‑12.4.36, and 13.0.0‑13.4.17 allow backend users to directly invoke AJAX backend routes without having access to the corresponding backend modules.

    typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backendPHP
    • Update to 12.4.37
    • Update to 13.4.18
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗

  8. CVE-2025-59014

    Medium · CVSS 5.1EPSS 0.29%Fix available

    Denial of Service in TYPO3 Bookmark Toolbar

    An uncaught exception in the Bookmark Toolbar of TYPO3 CMS versions 11.0.0–11.5.47, 12.0.0–12.4.36, and 13.0.0–13.4.17 lets administrator‑level backend users trigger a denial‑of‑service condition in the backend user interface by saving manipulated data in the bookmark toolbar.

    typo3/cms-backend typo3/cms-backend typo3/cms-backendPHP
    • Update to 12.4.37
    • Update to 13.4.18
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗

  9. CVE-2025-47941

    High · CVSS 7.2EPSS 0.47%Fix available

    TYPO3 Has Broken Authentication in Backend MFA

    TYPO3 is an open source, PHP based web content management system. In versions on the 12.x branch prior to 12.4.31 LTS and the 13.x branch prior to 13.4.2 LTS, the multifactor authentication (MFA) dialog presented during backend login can be bypassed due to insufficient enforcement of access restrictions on all backend routes. Successful exploitation requires valid backend user credentials, as MFA can only be bypassed after successful authentication. Users should update to TYPO3 version 12.4.31 LTS or 13.4.12 LTS to fix the problem.

    typo3/cms-backend typo3/cms-backendPHP
    • Update to 12.4.31
    • Update to 13.4.12
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  10. CVE-2024-34537

    Medium · CVSS 4.9EPSS 0.71%Fix available

    CVE-2024-34537

    TYPO3 before 13.3.1 allows denial of service (interface error) in the Bookmark Toolbar (ext:backend), exploitable by an administrator-level backend user account via manipulated data saved in the bookmark toolbar of the backend user interface. The fixed versions are 10.4.46 ELTS, 11.5.40 LTS, 12.4.21 LTS, and 13.3.1.

    typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backendPHP
    • Update to 10.4.46
    • Update to 11.5.40
    • Update to 12.4.21
    • Update to 13.3.1
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  11. CVE-2024-47780

    Low · CVSS 3.1EPSS 0.3%Fix available

    Information Disclosure in TYPO3 Page Tree

    TYPO3 is a free and open source Content Management Framework. Backend users could see items in the backend page tree without having access if the mounts pointed to pages restricted for their user/group, or if no mounts were configured but the pages allowed access to "everybody." However, affected users could not manipulate these pages. Users are advised to update to TYPO3 versions 10.4.46 ELTS, 11.5.40 LTS, 12.4.21 LTS, 13.3.1 that fix the problem described. There are no known workarounds for this vulnerability.

    typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backendPHP
    • Update to 10.4.46
    • Update to 11.5.40
    • Update to 12.4.21
    • Update to 13.3.1
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  12. CVE-2021-21370

    Medium · CVSS 5.4EPSS 0.87%Fix available

    Cross-Site Scripting in Content Preview (CType menu)

    TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 it has been discovered that content elements of type _menu_ are vulnerable to cross-site scripting when their referenced items get previewed in the page module. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1.

    typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backendPHP
    • Update to 10.4.14
    • Update to 11.1.1
    • Update to 7.6.51
    • Update to 8.7.40
    • Update to 9.5.25
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  13. CVE-2021-21340

    Medium · CVSS 5.4EPSS 0.87%Fix available

    Cross-Site Scripting in Content Preview

    TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 10.4.14, 11.1.1 it has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1 .

    typo3/cms-backend typo3/cms-backendPHP
    • Update to 10.4.14
    • Update to 11.1.1
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  15. CVE-2010-3663

    High · CVSS 8.8EPSS 2.4%Fix available

    CVE-2010-3663

    TYPO3 before 4.1.14, 4.2.x before 4.2.13, 4.3.x before 4.3.4 and 4.4.x before 4.4.1 contains an insecure default value of the variable fileDenyPattern which could allow remote attackers to execute arbitrary code on the backend.

    typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backendPHP
    • Update to 4.1.14
    • Update to 4.2.13
    • Update to 4.3.4
    • Update to 4.4.1
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  19. CVE-2010-3659

    Medium · CVSS 5.4EPSS 1.28%Fix available

    CVE-2010-3659

    Multiple cross-site scripting (XSS) vulnerabilities in TYPO3 CMS 4.1.x before 4.1.14, 4.2.x before 4.2.13, 4.3.x before 4.3.4, and 4.4.x before 4.4.1 allow remote authenticated backend users to inject arbitrary web script or HTML via unspecified parameters to the extension manager, or unspecified parameters to unknown backend forms.

    typo3/cms-backend typo3/cms-backend typo3/cms-backend typo3/cms-backendPHP
    • Update to 4.1.14
    • Update to 4.2.13
    • Update to 4.3.4
    • Update to 4.4.1
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

  20. CVE-2010-3715

    Not ratedEPSS 1.06%Fix available

    CVE-2010-3715

    Multiple cross-site scripting (XSS) vulnerabilities in TYPO3 4.2.x before 4.2.15, 4.3.x before 4.3.7, and 4.4.x before 4.4.4 allow remote attackers to inject arbitrary web script or HTML via vectors related to (1) the RemoveXSS function, and allow remote authenticated users to inject arbitrary web script or HTML via vectors related to (2) the backend.

    typo3/cms-backend typo3/cms-backend typo3/cms-backendPHP
    • Update to 4.2.15
    • Update to 4.3.7
    • Update to 4.4.4
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

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