CVE-2020-8264 — MEDIUM (6.1)

Vulnerability 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.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Rubyonrails	Rails	>= 6.0.0, < 6.0.3.4

Related Weaknesses (CWE)

CWE-79

References

https://groups.google.com/g/rubyonrails-security/c/yQzUVfv42jk/m/oJWw-xhNAQAJMailing ListThird Party Advisory
https://hackerone.com/reports/904059ExploitPatchThird Party Advisory
https://groups.google.com/g/rubyonrails-security/c/yQzUVfv42jk/m/oJWw-xhNAQAJMailing ListThird Party Advisory
https://hackerone.com/reports/904059ExploitPatchThird Party Advisory

FAQ

What is CVE-2020-8264?

CVE-2020-8264 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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...

How severe is CVE-2020-8264?

CVE-2020-8264 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-8264?

Check the references section above for vendor advisories and patch information. Affected products include: Rubyonrails Rails.