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I. Basic Information for CVE-2021-26540
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the "allowedIframeHostnames" option when the "allowIframeRelativeUrls" is set to true, which allows attackers to bypass hostname whitelist for iframe element, related using an src value that starts with "/\\example.com".
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Abea Apostrophe Technologies sanitize-html 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Abea Apostrophe Technologies sanitize-html是美国Abea组织的一个清除格式工具。提供了带有清晰API的简单HTML标签清除。 Apostrophe Technologies sanitize-html 中存在输入验证错误漏洞,该漏洞源于不能正确验证 allowedIframeHostnames 选项设置的主机名,这允许攻击者绕过iframe元素的主机名白名单,使用以 /\example.com 开头的src值相关的配置。
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
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II. Public POCs for CVE-2021-26540
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III. Intelligence Information for CVE-2021-26540
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IV. Related Vulnerabilities
V. Comments for CVE-2021-26540

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