CVE-2019-16769: Cross-Site Scripting in serialize-javascript
Summary
CVE-2019-16769: Cross-Site Scripting in serialize-javascript. Affects serialize-javascript versions < 2.1.1. Fixed in 2.1.1. How to fix ↓
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Background
The serialize-javascript package is an npm package used for serializing JavaScript objects into a string representation. It is commonly used in web applications to transmit data between the client and server. However, versions prior to 2.1.1 are vulnerable to Cross-Site Scripting (XSS) attacks. This vulnerability arises from the package's failure to properly sanitize serialized regular expressions. It is important to note that this vulnerability does not affect Node.js applications.
Vulnerability Detail
The vulnerability in serialize-javascript allows for Cross-Site Scripting (XSS) attacks. An attacker can exploit this vulnerability by injecting malicious code into serialized regular expressions. When this code is deserialized and executed on the client-side, it can lead to unauthorized access, data theft, or other malicious activities. The impact of this vulnerability can vary depending on the context in which the serialized data is used.
How To Fix
Latest published version: 7.1.3 as of 22 Oct 2026
npm install serialize-javascript@7.1.3Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
2.1.1
This is the first release that contains the fix.
npm install serialize-javascript@2.1.1Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to upgrade to the fixed version of the serialize-javascript package to mitigate the risk of XSS attacks.
Conclusion
In conclusion, the serialize-javascript package prior to version 2.1.1 is vulnerable to Cross-Site Scripting (XSS) attacks. It is crucial for developers to upgrade to the fixed version to mitigate the risk of XSS attacks. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Serialize-javascript is an npm package used for serializing JavaScript objects into a string representation. It is commonly used in web applications to transmit data between the client and server.
Cross-Site Scripting (XSS) is a type of security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. This can lead to unauthorized access, data theft, or other malicious activities.
This vulnerability affects web applications that use the serialize-javascript package. If the serialized data is not properly sanitized, an attacker can inject malicious code that will be executed on the client-side, potentially leading to XSS attacks.
No, this vulnerability does not affect Node.js applications. It only affects web applications that use the serialize-javascript package.
To protect your application, it is recommended to upgrade to version 2.1.1 or later of the serialize-javascript package. This version includes the necessary fixes to prevent XSS attacks. Additionally, it is good practice to sanitize and validate all user input to prevent injection attacks.
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