TYPO3 subject to Uncontrolled Recursion resulting in Denial of Service
Priority LOW 34CWE-674Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-674.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00731 54th percentileScored 2026-11-07
Fix Fixed typo3 (TYPO3): 9.5.38, 10.4.33, 11.5.20 +1typo3/cms-core (Packagist): 9.5.38, 10.4.33, 11.5.20+1 more product
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TYPO3 | typo3 | 9.0.0 to before 9.5.38; 10.0.0 to before 10.4.33; 11.0.0 to before 11.5.20; 12.0.0 to before 12.1.0 | 9.5.38, 10.4.33, 11.5.20, 12.1.0 | Patch available | CNA |
| — | typo3/cms-core (Packagist) | 9.0.0 to before 9.5.38 | 9.5.38 | Patch available | GHSA-8c28-5mp7-v24h |
| — | typo3/cms-core (Packagist) | 10.0.0 to before 10.4.33 | 10.4.33 | Patch available | GHSA-8c28-5mp7-v24h |
| — | typo3/cms-core (Packagist) | 11.0.0 to before 11.5.20 | 11.5.20 | Patch available | GHSA-8c28-5mp7-v24h |
| — | typo3/cms (Packagist) | 10.0.0 to before 10.4.33 | 10.4.33 | Patch available | GHSA-8c28-5mp7-v24h |
| — | typo3/cms (Packagist) | 11.0.0 to before 11.5.20 | 11.5.20 | Patch available | GHSA-8c28-5mp7-v24h |
- typo3 VendorTYPO3 Affected 9.0.0 to before 9.5.38; 10.0.0 to before 10.4.33; 11.0.0 to before 11.5.20; 12.0.0 to before 12.1.0 Fixed in 9.5.38, 10.4.33, 11.5.20, 12.1.0 Patch available CNA
- typo3/cms-core (Packagist) Vendor— Affected 9.0.0 to before 9.5.38 Fixed in 9.5.38 Patch available GHSA-8c28-5mp7-v24h
- typo3/cms-core (Packagist) Vendor— Affected 10.0.0 to before 10.4.33 Fixed in 10.4.33 Patch available GHSA-8c28-5mp7-v24h
- typo3/cms-core (Packagist) Vendor— Affected 11.0.0 to before 11.5.20 Fixed in 11.5.20 Patch available GHSA-8c28-5mp7-v24h
- typo3/cms (Packagist) Vendor— Affected 10.0.0 to before 10.4.33 Fixed in 10.4.33 Patch available GHSA-8c28-5mp7-v24h
- typo3/cms (Packagist) Vendor— Affected 11.0.0 to before 11.5.20 Fixed in 11.5.20 Patch available GHSA-8c28-5mp7-v24h
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* | 9.0.0 to before 9.5.38; 10.0.0 to before 10.4.33; 11.0.0 to before 11.5.20 | Vulnerable | TYPO3 |
- cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* Versions 9.0.0 to before 9.5.38; 10.0.0 to before 10.4.33; 11.0.0 to before 11.5.20 Vulnerable ·TYPO3
Remediation
- Fix · CNA typo3 (TYPO3) Fixed in 9.5.38, 10.4.33, 11.5.20, 12.1.0
- Fix · GHSA-8c28-5mp7-v24h typo3/cms-core (Packagist) Fixed in 9.5.38 Advisory →
- Fix · GHSA-8c28-5mp7-v24h typo3/cms-core (Packagist) Fixed in 10.4.33 Advisory →
- Fix · GHSA-8c28-5mp7-v24h typo3/cms-core (Packagist) Fixed in 11.5.20 Advisory →
- Fix · GHSA-8c28-5mp7-v24h typo3/cms (Packagist) Fixed in 10.4.33 Advisory →
- Fix · GHSA-8c28-5mp7-v24h typo3/cms (Packagist) Fixed in 11.5.20 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-23500
- 2026-10-03 Alias added: GHSA-8c28-5mp7-v24h
References
Advisory 2
Other 5
- https://github.com/TYPO3/typo3/commit/1e5f44417f031c9c5a9f9d09a6a841cf89aa7b7a
- https://github.com/TYPO3/typo3/commit/73b46b6a627093112cfca4b895a198ca5e1970b7
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2022-23500.yaml
- https://github.com/TYPO3/typo3
- https://typo3.org/security/advisory/typo3-core-sa-2022-012
More Typo3 vulnerabilities
- TI-2023-10314 Persisted Cross-Site Scripting in Frontend Rendering in typo3 CVSS 3.1HIGH 8.8
- TI-2010-03538 The jumpUrl (aka access tracking) implementation in tslib/class.tslib_fe.php in TYPO3… CVSS 2.0HIGH 7.1
- TI-2009-00775 The jumpUrl mechanism in class.tslib_fe.php in TYPO3 3.3.x through 3.8.x, 4.0 before… CVSS 2.0MEDIUM 5.0
- TI-2009-00241 The Indexed Search Engine (indexed_search) system extension in TYPO3 4.0.0 through 4.0.9… CVSS 2.0HIGH 10.0
- TI-2020-08940 Improperly Controlled Modification of Dynamically-Determined Object Attributes in TYPO3 CMS CVSS 3.1CRITICAL 10.0
- TI-2011-03994 Improper authentication in TYPO3 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-23500 · CVE Program
- CVE-2022-23500 · NVD
- FIRST EPSS
- GHSA-8c28-5mp7-v24h · GitHub Advisory Database · CC BY 4.0
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