CVE-2020-8264

Published: Jan 6, 2021Modified: Jun 17, 2026

6.1

Vector

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

Exploitability: 2.8 / Impact: 2.7

Source: NVD

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.

Affected (1)

Products: Rubyonrails: Rails

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Rubyonrails Rails	From 6.0.0 to 6.0.3.4

Related CWEs

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (4)

https://groups.google.com/g/rubyonrails-security/c/yQzUVfv42jk/m/oJWw-xhNAQAJ

Source: support@hackerone.com

Mailing ListThird Party Advisory

https://hackerone.com/reports/904059

Source: support@hackerone.com

ExploitPatchThird Party Advisory

https://groups.google.com/g/rubyonrails-security/c/yQzUVfv42jk/m/oJWw-xhNAQAJ

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://hackerone.com/reports/904059

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitPatchThird Party Advisory

Timeline

No history available yet.