Description
phlex is an open source framework for building object-oriented views in Ruby. There is a potential cross-site scripting (XSS) vulnerability that can be exploited via maliciously crafted user data. The filter to detect and prevent the use of the `javascript:` URL scheme in the `href` attribute of an `<a>` tag could be bypassed with tab `\t` or newline `\n` characters between the characters of the protocol, e.g. `java\tscript:`. This vulnerability is fixed in 1.10.1, 1.9.2, 1.8.3, 1.7.2, 1.6.3, 1.5.3, and 1.4.2. Configuring a Content Security Policy that does not allow `unsafe-inline` would effectively prevent this vulnerability from being exploited.
References (4)
Core 4
Core References
Vendor Advisory x_refsource_confirm
https://github.com/phlex-ruby/phlex/security/advisories/GHSA-g7xq-xv8c-h98c
Patch x_refsource_misc
https://github.com/phlex-ruby/phlex/commit/9e3f5b980655817993682e409cbda72956d865cb
Various Sources x_refsource_misc
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
Various Sources x_refsource_misc
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy#unsafe-inline
Scores
CVSS v3
7.1
EPSS
0.0018
EPSS Percentile
39.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (8)
phlex-ruby/phlex
>= 1.10.0, < 1.10.1
phlex-ruby/phlex
>= 1.4.0, < 1.4.2
phlex-ruby/phlex
>= 1.5.0, < 1.5.3
phlex-ruby/phlex
>= 1.6.0, < 1.6.3
phlex-ruby/phlex
>= 1.7.0, < 1.7.2
phlex-ruby/phlex
>= 1.8.0, < 1.8.3
phlex-ruby/phlex
>= 1.9.0, < 1.9.2
rubygems/phlex
1.10.0 - 1.10.1RubyGems
Published
Apr 17, 2024
Tracked Since
Feb 18, 2026