Cross-Site Scripting in Backend Grid View

中 5.4CVE-2021-32669 · BIT-typo3-2021-32669 · GHSA-rgcg-28xm-8mmw · 20/07/2021 公開 · 17/06/2026 更新

要点

CVE-2021-32669 は typo3/cms, typo3/cms-core, typo3 (typo3) に影響する深刻度「中」 (CVSS 5.4) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.60%（全脆弱性の 48.8% より高い）。
対処：10.4.18, 11.3.1, 9.5.28, 8.7.41 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
typo3/cms Packagist	`≥ 10.0.0, < 10.4.18≥ 11.0.0, < 11.3.1≥ 9.0.0, < 9.5.28`	`10.4.1811.3.19.5.28`
typo3/cms-core Packagist	`≥ 10.0.0, < 10.4.18≥ 11.0.0, < 11.3.1≥ 8.0.0, < 8.7.41≥ 9.0.0, < 9.5.28`	`10.4.1811.3.18.7.419.5.28`
typo3 typo3	`≥ 10.0.0, ≤ 10.4.17≥ 11.0.0, ≤ 11.3.0≥ 8.0.0, ≤ 8.7.40≥ 9.0.0, ≤ 9.5.28`	修正版なし

概要

Problem

Failing to properly encode settings for backend layouts, the corresponding grid view is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability.

Solution

Update to TYPO3 versions 8.7.41 ELTS, 9.5.28, 10.4.18, 11.3.1 that fix the problem described.

Credits

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

NVD の説明

TYPO3 is an open source PHP based web content management system. Versions 9.0.0 through 9.5.28, 10.0.0 through 10.4.17, and 11.0.0 through 11.3.0 have a cross-site scripting vulnerability. When settings for _backend layouts_ are not properly encoded, the corresponding grid view is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. TYPO3 versions 9.5.29, 10.4.18, 11.3.1 contain a patch for this vulnerability.