Staging Environment: Content and features may be unstable or change without notice.
Advisory details: ruby_advisory_db / gems/actionpack/CVE-2020-8264
Advisory ID ruby_advisory_db/gems/actionpack/CVE-2020-8264
Aliases CVE-2020-8264
GHSA-35mm-cc6r-8fjp
Summary Possible XSS Vulnerability in Action Pack in Development Mode There is a possible XSS vulnerability in Action Pack while the application server is in development mode. This vulnerability is in the Actionable Exceptions middleware. This vulnerability has been assigned the CVE identifier CVE-2020-8264. Versions Affected: >= 6.0.0 Not affected: < 6.0.0 Fixed Versions: 6.0.3.4 Impact ------ When an application is running in development mode, and attacker can 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. Workarounds ----------- Until such time as the patch can be applied, application developers should disable the Actionable Exceptions middleware in their development environment via a line such as this one in their config/environment/development.rb: `config.middleware.delete ActionDispatch::ActionableExceptions`
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3 6.1
Reference id Reference type URL
https://groups.google.com/g/rubyonrails-security/c/yQzUVfv42jk

No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.

There are no known vectors.

There are no SSVC decisions available.