VYPR
Medium severity5.9NVD Advisory· Published Dec 14, 2022· Updated Jun 17, 2026

CVE-2022-23500

CVE-2022-23500

Description

TYPO3 is an open source PHP based web content management system. In versions prior to 9.5.38, 10.4.33, 11.5.20, and 12.1.1, requesting invalid or non-existing resources via HTTP triggers the page error handler, which again could retrieve content to be shown as an error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits of the web server are exceeded. This vulnerability is very similar, but not identical, to the one described in CVE-2021-21359. This issue is patched in versions 9.5.38 ELTS, 10.4.33, 11.5.20 or 12.1.1.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
typo3/cms-corePackagist
>= 9.0.0, < 9.5.389.5.38
typo3/cms-corePackagist
>= 10.0.0, < 10.4.3310.4.33
typo3/cms-corePackagist
>= 11.0.0, < 11.5.2011.5.20
typo3/cmsPackagist
>= 10.0.0, < 10.4.3310.4.33
typo3/cmsPackagist
>= 11.0.0, < 11.5.2011.5.20

Affected products

4

Patches

Vulnerability mechanics

References

7

News mentions

0

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