CVE-2016-1000230: XSS in rendr
Summary
CVE-2016-1000230: XSS in client rendered block templates in rendr. Affects rendr versions < 1.1.4. Fixed in 1.1.4. How to fix ↓
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Background
Rendr is an npm package that enables server-side rendering of JavaScript applications. It allows developers to build isomorphic applications that can run on both the server and the client. Rendr is vulnerable to a cross-site scripting (XSS) attack when client-side rendering is performed within a _block.
Vulnerability Detail
The vulnerability affects versions of rendr up to 1.1.3. When client-side rendering is done inside a _block, it is susceptible to cross-site scripting. Server-side rendering is not affected and properly escapes any potential XSS attacks. This vulnerability can lead to the execution of malicious scripts in the context of the affected user's browser, potentially compromising sensitive data or performing unauthorized actions.
How To Fix
Minimum fixed version
1.1.4
This is the first release that contains the fix.
npm install rendr@1.1.4Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. Updating to the latest version of rendr is the recommended solution.
Conclusion
The vulnerability in rendr allows for cross-site scripting (XSS) attacks when client-side rendering is performed within a _block. It is crucial to update rendr to version 1.1.4 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for rendr →
FAQ
Rendr is an npm package that enables server-side rendering of JavaScript applications. It allows developers to build isomorphic applications that can run on both the server and the client.
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 the execution of arbitrary code in the context of the affected user's browser.
This vulnerability affects rendr when client-side rendering is performed within a _block. It allows for the execution of malicious scripts in the context of the user's browser, potentially compromising sensitive data or performing unauthorized actions.
No, server-side rendering in rendr is not affected by this vulnerability. Server-side rendering properly escapes any potential XSS attacks.
To fix this vulnerability, it is recommended to update rendr to version 1.1.4 or later. Updating to the latest version will ensure that client-side rendering within _block is properly protected against XSS attacks.
