CVE-2020-8264

MEDIUM

Rails 6.0.0-6.0.3.3 - Cross-Site Scripting via Actionable Exceptions Middleware

Title source: llm
STIX 2.1

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.

References (2)

Core 2
Core References
Exploit, Patch, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/904059
Mailing List, Third Party Advisory x_refsource_misc
https://groups.google.com/g/rubyonrails-security/c/yQzUVfv42jk/m/oJWw-xhNAQAJ

Scores

CVSS v3 6.1
EPSS 0.0035
EPSS Percentile 57.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (2)
rubygems/actionpack 6.0.0 - 6.0.3.4RubyGems
rubyonrails/rails 6.0.0 - 6.0.3.4
Published Jan 06, 2021
Tracked Since Feb 18, 2026