CVE-2020-7702: Prototype Pollution in templ8
Summary
CVE-2020-7702: Prototype Pollution in templ8. Affects templ8 versions < 0.0.44. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The templ8 package is an npm package used for templating in JavaScript applications. It provides a parse function that is vulnerable to Prototype Pollution. Prototype Pollution is a vulnerability that allows an attacker to modify the prototype of an object, leading to unexpected behavior and potential security issues. In the case of templ8, the parse function is susceptible to this vulnerability.
Vulnerability Detail
The vulnerability in templ8 arises from improper handling of user-supplied input during the parsing process. An attacker can craft malicious input that manipulates the prototype of objects, potentially leading to arbitrary code execution, information disclosure, or denial of service. This vulnerability affects all versions of templ8 up to and including 0.0.44.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As a temporary workaround, developers can avoid using the parse function of templ8 or implement additional input validation and sanitization measures before passing user-supplied input to the parse function. Here is an example of how to sanitize input using the 'xss' package:
const xss = require('xss');
const sanitizedInput = xss(input);
// Pass sanitizedInput to the parse function
Conclusion
The templ8 package is vulnerable to Prototype Pollution, which can lead to various security issues. It is crucial to update to a version beyond 0.0.44 and implement proper input validation and sanitization to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for templ8 →
FAQ
Prototype Pollution is a vulnerability that allows an attacker to modify the prototype of an object, leading to unexpected behavior and potential security issues. It can be exploited to execute arbitrary code, disclose sensitive information, or cause denial of service.
The vulnerability in templ8 arises from improper handling of user-supplied input during the parsing process. This allows an attacker to manipulate the prototype of objects and potentially execute arbitrary code or cause other security issues.
The impact of this vulnerability depends on how the templ8 package is used in an application. It could lead to arbitrary code execution, information disclosure, or denial of service if an attacker is able to exploit the Prototype Pollution vulnerability.
Yes, all versions of templ8 up to and including 0.0.44 are vulnerable to Prototype Pollution. It is recommended to update to a version beyond 0.0.44 to mitigate the vulnerability.
To fix this vulnerability, update the templ8 package to a version beyond 0.0.44. Additionally, ensure that user-supplied input is properly validated and sanitized before passing it to the parse function.
