TI-2020-08940 Aliases CVE-2020-11066 GHSA-2rxh-h6h9-qrqc

Improperly Controlled Modification of Dynamically-Determined Object Attributes in TYPO3 CMS

MEDIUM 46CWE-915Published 2020-05-13 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Tampering
Confidentiality · integrity · availability: None · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-915.

Summary

In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.17 and greater than or equal to 10.0.0 and less than 10.4.2, calling unserialize() on malicious user-submitted content can lead to modification of dynamically-determined object attributes and result in triggering deletion of an arbitrary directory in the file system, if it is writable for the web server. It can also trigger message submission via email using the identity of the web site (mail relay). Another insecure deserialization vulnerability is required to actually exploit mentioned aspects. This has been fixed in 9.5.17 and 10.4.2.

Why it matters now

EPSS 0.01509 74th percentileScored 2026-11-07

Fix Fixed TYPO3 CMS (TYPO3): 9.5.17, 10.4.2typo3/cms-core (Packagist): 9.5.17, 10.4.2+1 more product

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
TYPO3	TYPO3 CMS	9.0.0 to before 9.5.17; 10.0.0 to before 10.4.2	9.5.17, 10.4.2	Patch available	CNA
—	typo3/cms-core (Packagist)	9.0.0 to before 9.5.17	9.5.17	Patch available	GHSA-2rxh-h6h9-qrqc
—	typo3/cms-core (Packagist)	10.0.0 to before 10.4.2	10.4.2	Patch available	GHSA-2rxh-h6h9-qrqc
—	typo3/cms (Packagist)	10.0.0 to before 10.4.2	10.4.2	Patch available	GHSA-2rxh-h6h9-qrqc
—	typo3/cms (Packagist)	9.0.0 to before 9.5.17	9.5.17	Patch available	GHSA-2rxh-h6h9-qrqc

TYPO3 CMS VendorTYPO3 Affected 9.0.0 to before 9.5.17; 10.0.0 to before 10.4.2 Fixed in 9.5.17, 10.4.2 Patch available CNA
typo3/cms-core (Packagist) Vendor— Affected 9.0.0 to before 9.5.17 Fixed in 9.5.17 Patch available GHSA-2rxh-h6h9-qrqc
typo3/cms-core (Packagist) Vendor— Affected 10.0.0 to before 10.4.2 Fixed in 10.4.2 Patch available GHSA-2rxh-h6h9-qrqc
typo3/cms (Packagist) Vendor— Affected 10.0.0 to before 10.4.2 Fixed in 10.4.2 Patch available GHSA-2rxh-h6h9-qrqc
typo3/cms (Packagist) Vendor— Affected 9.0.0 to before 9.5.17 Fixed in 9.5.17 Patch available GHSA-2rxh-h6h9-qrqc

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:typo3:typo3::::::::	9.0.0 to before 9.5.17; 10.0.0 to before 10.4.2	Vulnerable	TYPO3

cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* Versions 9.0.0 to before 9.5.17; 10.0.0 to before 10.4.2 Vulnerable ·TYPO3

Remediation

Fix · CNA TYPO3 CMS (TYPO3) Fixed in 9.5.17, 10.4.2
Fix · GHSA-2rxh-h6h9-qrqc typo3/cms-core (Packagist) Fixed in 9.5.17 Advisory →
Fix · GHSA-2rxh-h6h9-qrqc typo3/cms-core (Packagist) Fixed in 10.4.2 Advisory →
Fix · GHSA-2rxh-h6h9-qrqc typo3/cms (Packagist) Fixed in 10.4.2 Advisory →
Fix · GHSA-2rxh-h6h9-qrqc typo3/cms (Packagist) Fixed in 9.5.17 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2020-11066
2026-10-03 Alias added: GHSA-2rxh-h6h9-qrqc

References

Advisory 2

Other 3

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-2011-03994 Improper authentication in TYPO3 CVSS 3.1CRITICAL 9.8
TI-2011-03159 SQL injection in TYPO3 Core CVSS 3.1CRITICAL 9.8

See all 217 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences