CVE-2020-8264

Public Exploit

Description

In actionpack gem >= 6.0.0, a possible XSS vulnerability exists when an application is running in development mode allowing an attacker to send or embed (in another page) a specially crafted URL which can allow the attacker to execute JavaScript in the context of the local application. This vulnerability is in the Actionable Exceptions middleware.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.35%
Third-Party Advisory google.com Third-Party Advisory hackerone.com
Affected: n/a https://github.com/rails/rails
Published at:
Updated at:

References

Link Tags
https://hackerone.com/reports/904059 patch third party advisory exploit
https://groups.google.com/g/rubyonrails-security/c/yQzUVfv42jk/m/oJWw-xhNAQAJ third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2020-8264?
CVE-2020-8264 has been scored as a medium severity vulnerability.
How to fix CVE-2020-8264?
To fix CVE-2020-8264, 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-2020-8264 being actively exploited in the wild?
It is possible that CVE-2020-8264 is being exploited or will be exploited in a near future based on public information. 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-2020-8264?
CVE-2020-8264 affects n/a https://github.com/rails/rails.
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