Cross-Site Scripting in Content Preview (CType menu)

TRUNG BÌNH 5.4CVE-2021-21370 · BIT-typo3-2021-21370 · GHSA-x7hc-x7fm-f7qh · Công bố 23/03/2021 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2021-21370 là lỗ hổng mức TRUNG BÌNH (CVSS 5.4) ảnh hưởng typo3/cms, typo3/cms-backend, typo3/cms-core.
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.87%, cao hơn 58.9% các lỗ hổng khác.
Cách xử lý: cập nhật lên 10.4.14, 11.1.1, 9.5.25, 7.6.51 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
typo3/cms Packagist	`≥ 10.0.0, < 10.4.14≥ 11.0.0, < 11.1.1≥ 9.0.0, < 9.5.25`	`10.4.1411.1.19.5.25`
typo3/cms-backend Packagist	`≥ 10.0.0, < 10.4.14≥ 11.0.0, < 11.1.1≥ 7.0.0, < 7.6.51≥ 8.0.0, < 8.7.40≥ 9.0.0, < 9.5.25`	`10.4.1411.1.17.6.518.7.409.5.25`
typo3/cms-core Packagist	`≥ 10.0.0, < 10.4.14≥ 11.0.0, < 11.1.1≥ 9.0.0, < 9.5.25`	`10.4.1411.1.19.5.25`
typo3 typo3	`≥ 10.0.0, < 10.4.14≥ 11.0.0, < 11.1.1≥ 7.0.0, < 7.6.51≥ 8.0.0, < 8.7.40≥ 9.0.0, < 9.5.25`	`10.4.1411.1.17.6.518.7.409.5.25`

Mô tả

Problem

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.

Solution

Update to TYPO3 versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 that fix the problem described.

Credits

Thanks to TYPO3 contributor Oliver Bartsch who reported and fixed the issue.

References

TYPO3-CORE-SA-2021-008

Mô tả của NVD

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.