CVE-2020-7741

Cross-site Scripting (XSS)

Description

This affects the package hellojs before 1.18.6. The code get the param oauth_redirect from url and pass it to location.assign without any check and sanitisation. So we can simply pass some XSS payloads into the url param oauth_redirect, such as javascript:alert(1).

Category

9.9
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.19%
Third-Party Advisory github.com Third-Party Advisory snyk.io
Affected: n/a hellojs
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-JS-HELLOJS-1014546 third party advisory
https://github.com/MrSwitch/hello.js/blob/3b79ec93781b3d7b9c0b56f598e060301d1f3e73/dist/hello.all.js%23L1545 broken link
https://github.com/MrSwitch/hello.js/commit/d6f5137f30de6e0ef7048191ee6ae575fdc2f669 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-7741?
CVE-2020-7741 has been scored as a critical severity vulnerability.
How to fix CVE-2020-7741?
To fix CVE-2020-7741, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-7741 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-7741 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-7741?
CVE-2020-7741 affects n/a hellojs.
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