CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
Percentile
29.2%
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
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.
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
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
Percentile
29.2%