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Medium

TYPO3 Bookmark Toolbar vulnerable to denial of service

  • Disclosed: 09.09.2025
  • Updated: 11.10.2026 10:22

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.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package typo3/cms-backend >= 11.0.0, < 12.4.37, >= 12.0.0, < 12.4.37, >= 13.0.0, < 13.4.18 12.4.37, 13.4.18

References

CVSS score -
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-248
Platform
Composer
Package
typo3/cms-backend
Disclosed
09.09.2025
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-xrcq-533q-8rxw - CC BY 4.0

Vulnerability history: typo3/cms-backend

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (25) in the archive
Total entries
25
First → latest
03.2021 09.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 6
  • Medium 16
  • Low 3

Disclosures per year

Severity:
  1. TYPO3 CMS - Broken Access Control in Backend and Install Tool
    High CVE-2026-19418 >= 13.0.0, < 13.4.34 13.4.34
  2. TYPO3 CMS Stores Cleartext Password in User Settings Module
    High · 7.5 CVE-2026-6553 >= 14.2.0, < 14.3.0 14.3.0
  3. TYPO3 Bookmark Toolbar vulnerable to denial of service this entry
    Medium CVE-2025-59014 >= 11.0.0, < 12.4.37, >= 12.0.0, < 12.4.37, >= 13.0.0, < 13.4.18 12.4.37, 13.4.18
  4. The TYPO3 CMS Backend has Broken Authentication in Backend MFA
    High · 7.2 CVE-2025-47941 >= 12.0.0, < 12.4.31, >= 13.0.0, < 13.4.12 12.4.31, 13.4.12
  5. TYPO3 Backend Command Injection via Shell Metacharacters in Uploaded File Name
    High CVE-2009-3631 <= 4.0.13, >= 4.1.0, < 4.1.13, >= 4.2.0, < 4.2.10, >= 4.3alpha1, < 4.3beta2 4.1.13, 4.2.10, 4.3beta2
  6. TYPO3 SQL injection vulnerability on the backend
    High · 8.8 CVE-2010-3662 < 4.1.14, >= 4.2.0, < 4.2.13, >= 4.3.0, < 4.3.4, >= 4.4.0, < 4.4.1 4.1.14, 4.2.13, 4.3.4, 4.4.1
  7. TYPO3 Arbitrary Code Execution vulnerability on the backend
    High · 8.8 CVE-2010-3663 < 4.1.14, >= 4.2, < 4.2.13, >= 4.3, < 4.3.4, >= 4.4, < 4.4.1 4.1.14, 4.2.13, 4.3.4, 4.4.1

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