CVE-2021-21340
Cross-Site Scripting in Content Preview
5.4
MEDIUM
CVSS 3.1
EPSS 0.87%
描述
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 10.4.14, 11.1.1 it has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1 .
如何修補 CVE-2021-21340
要修補 CVE-2021-21340,請將受影響套件升級到下列已修補版本。
- —升級至 10.4.14 或更新版本
- —升級至 10.4.14 或更新版本
- —升級至 10.4.14 或更新版本
CVE-2021-21340 正在被利用嗎?
低 — EPSS 為 0.9%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- >= 10.0.0, < 10.4.14
- >= 10.0.0, < 10.4.14
- >= 10.0.0, < 10.4.14
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |