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I. Basic Information for CVE-2021-32809
Vulnerability Information

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Vulnerability Title
Arbitrary HTML injection vulnerability in ckeditor
Source: NVD (National Vulnerability Database)
Vulnerability Description
ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Clipboard](https://ckeditor.com/cke4/addon/clipboard) package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. It affects all users using the CKEditor 4 plugins listed above at version >= 4.5.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
CKEditor 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CKEditor是一套开源的、基于网页的文字编辑器。 CKEditor 4 [Clipboard]包中存在跨站脚本漏洞,该漏洞允许用户使用格式错误的 HTML 滥用粘贴功能,这可能导致将任意 HTML 注入编辑器。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
ckeditorckeditor4 >= 4.5.2, < 4.16.2 -
II. Public POCs for CVE-2021-32809
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III. Intelligence Information for CVE-2021-32809
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IV. Related Vulnerabilities
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