CVE-2024-34358: TYPO3 vulnerable to an Uncontrolled Resource Consumption in the ShowImageController

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-14 · updated 2026-06-17
Weakness: CWE-200

Description

TYPO3 is an enterprise content management system. Starting in version 9.0.0 and prior to versions 9.5.48 ELTS, 10.4.45 ELTS, 11.5.37 LTS, 12.4.15 LTS, and 13.1.1, the `ShowImageController` (`_eID tx_cms_showpic_`) lacks a cryptographic HMAC-signature on the `frame` HTTP query parameter (e.g. `/index.php?eID=tx_cms_showpic?file=3&...&frame=12345`). This allows adversaries to instruct the system to produce an arbitrary number of thumbnail images on the server side. TYPO3 versions 9.5.48 ELTS, 10.4.45 ELTS, 11.5.37 LTS, 12.4.15 LTS, 13.1.1 fix the problem described.

Affected products

typo3: from 9.0.0 before 9.5.48; from 10.0.0 before 10.4.45; from 11.0.0 before 11.5.37; from 12.0.0 before 12.4.15; from 13.0.0 before 13.1.1 — fixed in 10.4.45, 11.5.37, 12.4.15, 13.1.1, 9.5.48

How to fix

Upgrade to a fixed version: typo3 10.4.45, 11.5.37, 12.4.15, 13.1.1. Check the vendor advisory for mitigations.

References

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