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CVE-2019-16769— Affected versions of serialize-javascript are vulnerable to Cross-site Scripting (XSS)

Quick assessment

Affected
yahoo serialize-javascript
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.

serialize-javascript是一款支持将JavaScript序列化为 JSON超集的软件包。 serialize-javascript 2.1.1之前版本中存在跨站脚本漏洞。该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。

CVSS 4.2 · Medium EPSS 0.80% · P55

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2019-16769

Vulnerability Information
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Vulnerability Title
Affected versions of serialize-javascript are vulnerable to Cross-site Scripting (XSS)
Source: CVE Program / CVE List V5
Vulnerability Description
The serialize-javascript npm package before version 2.1.1 is vulnerable to Cross-site Scripting (XSS). It does not properly mitigate against unsafe characters in serialized regular expressions. This vulnerability is not affected on Node.js environment since Node.js's implementation of RegExp.prototype.toString() backslash-escapes all forward slashes in regular expressions. If serialized data of regular expression objects are used in an environment other than Node.js, it is affected by this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
serialize-javascript 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
serialize-javascript是一款支持将JavaScript序列化为 JSON超集的软件包。 serialize-javascript 2.1.1之前版本中存在跨站脚本漏洞。该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。
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
yahoo serialize-javascript < 2.1.1 ~ 2.1.1 -

II. Public POCs for CVE-2019-16769

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III. Intelligence Information for CVE-2019-16769

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Vendor Advisories for CVE-2019-16769 (1)

IV. Related Vulnerabilities

Same product: serialize-javascript
Same vendor: yahoo
Same weakness: CWE-79

V. Comments for CVE-2019-16769

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