CVE-2024-34537

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-10-28 · updated 2026-06-17

Description

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.

Affected products

typo3: from 10.0.0 before 10.4.46; from 11.0.0 before 11.5.40; from 12.0.0 before 12.4.21; from 13.0.0 before 13.3.1 — fixed in 10.4.46, 11.5.40, 12.4.21, 13.3.1

How to fix

Upgrade to a fixed version: typo3 10.4.46, 11.5.40, 12.4.21, 13.3.1. Check the vendor advisory for mitigations.

References

https://github.com/TYPO3/typo3/security/advisories/GHSA-ffcv-v6pw-qhrp
https://typo3.org/security/advisory/typo3-core-sa-2024-011
https://www.mgm-sp.com/cve/denial-of-service-in-typo3-bookmark-toolbar

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