High severity · published Dec 14, 2022
CVE-2022-23500
TYPO3 is an open source PHP based web content management system
7.5
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TY
Typo3 · Typo3
9.0.0 before 9.5.38; 10.0.0 before 10.4.33; 11.0.0 before 11.5.20 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-23500
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-23500
Third Party Advisory
https://github.com/TYPO3/typo3/security/advisories/GHSA-8c28-5mp7-v24h
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TYPO3 is a free and open source Content Management Framework