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CVE-2022-21169— Prototype Pollution

Quick assessment

Affected
n/a express-xss-sanitizer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Express XSS Sanitizer是AhmedAdelFahim个人开发者的用于清理用户输入数据（在 req.body、req.query、req.headers 和 req.params 中）以防止跨站脚本 (XSS) 攻击。 Express XSS Sanitizer 1.1.3之前的版本存在安全漏洞，该漏洞源于攻击者通过allowedTags属性实现原型污染，导致攻击者绕过跨站脚本消毒措施。

CVSS 7.3 · High EPSS 0.77% · P52

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-21169

Vulnerability Information
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Vulnerability Title
Prototype Pollution
Source: CVE Program / CVE List V5
Vulnerability Description
The package express-xss-sanitizer before 1.1.3 are vulnerable to Prototype Pollution via the allowedTags attribute, allowing the attacker to bypass xss sanitization.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Express XSS Sanitizer 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Express XSS Sanitizer是AhmedAdelFahim个人开发者的用于清理用户输入数据（在 req.body、req.query、req.headers 和 req.params 中）以防止跨站脚本 (XSS) 攻击。 Express XSS Sanitizer 1.1.3之前的版本存在安全漏洞，该漏洞源于攻击者通过allowedTags属性实现原型污染，导致攻击者绕过跨站脚本消毒措施。
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

Vendor Product Affected Versions CPE Subscribe
- express-xss-sanitizer unspecified ~ 1.1.3 -

II. Public POCs for CVE-2022-21169

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III. Intelligence Information for CVE-2022-21169

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Patches & Fixes for CVE-2022-21169 (1)

Vendor Advisories for CVE-2022-21169 (1)

Other References for CVE-2022-21169 (2)

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Showing top 20 of 33 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: express-xss-sanitizer
Same vendor: n/a

V. Comments for CVE-2022-21169

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