7.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
5.6 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
15.5%
There is a potential cross-site scripting (XSS) vulnerability that can be exploited via maliciously crafted user data. This was due to improper case-sensitivity in the code that was meant to prevent these attacks.
If you render an <a>
tag with an href
attribute set to a user-provided link, that link could potentially execute JavaScript when clicked by another user.
a(href: user_profile) { "Profile" }
If you splat user-provided attributes when rendering any HTML or SVG tag, malicious event attributes could be included in the output, executing JavaScript when the events are triggered by another user.
h1(**JSON.parse(user_attributes))
Patches are available on RubyGems for all 1.x
minor versions. The patched versions are:
If you are on main
, it has been patched since aa50c60
Configuring a Content Security Policy that does not allow unsafe-inline
would effectively prevent this vulnerability from being exploited.
In addition to upgrading to a patched version of Phlex, we strongly recommend configuring a Content Security Policy header that does not allow unsafe-inline
. Hereβs how you can configure a Content Security Policy header in Rails. https://guides.rubyonrails.org/security.html#content-security-policy-header
developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy#unsafe-inline
github.com/phlex-ruby/phlex
github.com/phlex-ruby/phlex/commit/aa50c604cdee1d0ce7ef068a4c66cbd5d43f96a1
github.com/phlex-ruby/phlex/security/advisories/GHSA-242p-4v39-2v8g
github.com/rubysec/ruby-advisory-db/blob/master/gems/phlex/CVE-2024-28199.yml
nvd.nist.gov/vuln/detail/CVE-2024-28199
7.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
5.6 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
15.5%