TI-2021-04469 Aliases CVE-2021-21370 GHSA-x7hc-x7fm-f7qh

Cross-Site Scripting in Content Preview (CType menu)

LOW 26CWE-79Published 2021-03-23 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 it has been discovered that content elements of type _menu_ are vulnerable to cross-site scripting when their referenced items get previewed in the page module. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1.

Why it matters now

EPSS 0.00872 59th percentileScored 2026-11-07

Fix Fixed typo3/cms-backend (Packagist): 7.6.51, 8.7.40, 9.5.25 +2typo3/cms-core (Packagist): 10.4.14, 11.1.1, 9.5.25+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	7.0.0 – 7.6.50; 8.0.0 – 8.7.39; 9.0.0 – 9.5.24; 10.0.0 – 10.4.13; 11.0.0 – 11.1.0	—	No fix listed	CNA
—	typo3/cms-backend (Packagist)	7.0.0 to before 7.6.51	7.6.51	Patch available	GHSA-x7hc-x7fm-f7qh
—	typo3/cms-backend (Packagist)	8.0.0 to before 8.7.40	8.7.40	Patch available	GHSA-x7hc-x7fm-f7qh
—	typo3/cms-backend (Packagist)	9.0.0 to before 9.5.25	9.5.25	Patch available	GHSA-x7hc-x7fm-f7qh
—	typo3/cms-backend (Packagist)	10.0.0 to before 10.4.14	10.4.14	Patch available	GHSA-x7hc-x7fm-f7qh
—	typo3/cms-backend (Packagist)	11.0.0 to before 11.1.1	11.1.1	Patch available	GHSA-x7hc-x7fm-f7qh
—	typo3/cms-core (Packagist)	10.0.0 to before 10.4.14	10.4.14	Patch available	GHSA-x7hc-x7fm-f7qh
—	typo3/cms-core (Packagist)	11.0.0 to before 11.1.1	11.1.1	Patch available	GHSA-x7hc-x7fm-f7qh
—	typo3/cms-core (Packagist)	9.0.0 to before 9.5.25	9.5.25	Patch available	GHSA-x7hc-x7fm-f7qh
—	typo3/cms (Packagist)	10.0.0 to before 10.4.14	10.4.14	Patch available	GHSA-x7hc-x7fm-f7qh
—	typo3/cms (Packagist)	11.0.0 to before 11.1.1	11.1.1	Patch available	GHSA-x7hc-x7fm-f7qh
—	typo3/cms (Packagist)	9.0.0 to before 9.5.25	9.5.25	Patch available	GHSA-x7hc-x7fm-f7qh

TYPO3.CMS VendorTYPO3 Affected 7.0.0 – 7.6.50; 8.0.0 – 8.7.39; 9.0.0 – 9.5.24; 10.0.0 – 10.4.13; 11.0.0 – 11.1.0 Fixed in — No fix listed CNA
typo3/cms-backend (Packagist) Vendor— Affected 7.0.0 to before 7.6.51 Fixed in 7.6.51 Patch available GHSA-x7hc-x7fm-f7qh
typo3/cms-backend (Packagist) Vendor— Affected 8.0.0 to before 8.7.40 Fixed in 8.7.40 Patch available GHSA-x7hc-x7fm-f7qh
typo3/cms-backend (Packagist) Vendor— Affected 9.0.0 to before 9.5.25 Fixed in 9.5.25 Patch available GHSA-x7hc-x7fm-f7qh
typo3/cms-backend (Packagist) Vendor— Affected 10.0.0 to before 10.4.14 Fixed in 10.4.14 Patch available GHSA-x7hc-x7fm-f7qh
typo3/cms-backend (Packagist) Vendor— Affected 11.0.0 to before 11.1.1 Fixed in 11.1.1 Patch available GHSA-x7hc-x7fm-f7qh
typo3/cms-core (Packagist) Vendor— Affected 10.0.0 to before 10.4.14 Fixed in 10.4.14 Patch available GHSA-x7hc-x7fm-f7qh
typo3/cms-core (Packagist) Vendor— Affected 11.0.0 to before 11.1.1 Fixed in 11.1.1 Patch available GHSA-x7hc-x7fm-f7qh
typo3/cms-core (Packagist) Vendor— Affected 9.0.0 to before 9.5.25 Fixed in 9.5.25 Patch available GHSA-x7hc-x7fm-f7qh
typo3/cms (Packagist) Vendor— Affected 10.0.0 to before 10.4.14 Fixed in 10.4.14 Patch available GHSA-x7hc-x7fm-f7qh
typo3/cms (Packagist) Vendor— Affected 11.0.0 to before 11.1.1 Fixed in 11.1.1 Patch available GHSA-x7hc-x7fm-f7qh
typo3/cms (Packagist) Vendor— Affected 9.0.0 to before 9.5.25 Fixed in 9.5.25 Patch available GHSA-x7hc-x7fm-f7qh

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:typo3:typo3::::::::	7.0.0 to before 7.6.51; 8.0.0 to before 8.7.40; 9.0.0 to before 9.5.25; 10.0.0 to before 10.4.14; 11.0.0 to before 11.1.1	Vulnerable	TYPO3

cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* Versions 7.0.0 to before 7.6.51; 8.0.0 to before 8.7.40; 9.0.0 to before 9.5.25; 10.0.0 to before 10.4.14; 11.0.0 to before 11.1.1 Vulnerable ·TYPO3

Remediation

Fix · GHSA-x7hc-x7fm-f7qh typo3/cms-backend (Packagist) Fixed in 7.6.51 Advisory →
Fix · GHSA-x7hc-x7fm-f7qh typo3/cms-backend (Packagist) Fixed in 8.7.40 Advisory →
Fix · GHSA-x7hc-x7fm-f7qh typo3/cms-backend (Packagist) Fixed in 9.5.25 Advisory →
Fix · GHSA-x7hc-x7fm-f7qh typo3/cms-backend (Packagist) Fixed in 10.4.14 Advisory →
Fix · GHSA-x7hc-x7fm-f7qh typo3/cms-backend (Packagist) Fixed in 11.1.1 Advisory →
Fix · GHSA-x7hc-x7fm-f7qh typo3/cms-core (Packagist) Fixed in 10.4.14 Advisory →
Fix · GHSA-x7hc-x7fm-f7qh typo3/cms-core (Packagist) Fixed in 11.1.1 Advisory →
Fix · GHSA-x7hc-x7fm-f7qh typo3/cms-core (Packagist) Fixed in 9.5.25 Advisory →
Fix · GHSA-x7hc-x7fm-f7qh typo3/cms (Packagist) Fixed in 10.4.14 Advisory →
Fix · GHSA-x7hc-x7fm-f7qh typo3/cms (Packagist) Fixed in 11.1.1 Advisory →
Fix · GHSA-x7hc-x7fm-f7qh typo3/cms (Packagist) Fixed in 9.5.25 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2021-21370
2026-10-03 Alias added: GHSA-x7hc-x7fm-f7qh

References

Advisory 4

Other 2

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

See all 217 →

Sources

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