CVE-2022-23500

TYPO3 subject to Uncontrolled Recursion resulting in Denial of Service

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Third-Party Advisory github.com
Affected: TYPO3 typo3
Published at:
Updated at:

References

Link Tags
https://github.com/TYPO3/typo3/security/advisories/GHSA-8c28-5mp7-v24h third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-23500?
CVE-2022-23500 has been scored as a medium severity vulnerability.
How to fix CVE-2022-23500?
To fix CVE-2022-23500, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-23500 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-23500 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-23500?
CVE-2022-23500 affects TYPO3 typo3.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.