CVE-2024-28199 Cross-site Scripting (XSS) possible with maliciously formed HTML attribute names and values in Phlex
Attackers can execute JavaScript via malicious HTML attributes in Phlex views, requiring users to upgrade the Ruby library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-28199?
CVE-2024-28199 is a high-severity cross-site scripting vulnerability in phlex-ruby phlex, published on 11 Mar 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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. 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. If you splat user-provided attributes when rendering any HTML tag, malicious event attributes could be included in the output, executing JavaScript when the events are triggered by another user. Patches are available on RubyGems for all 1.x minor versions. Users are advised to upgrade. Users unable to upgrade should consider configuring a content security policy that does not allow `unsafe-inline`.
Weakness: CWE-79
Which versions are affected by CVE-2024-28199?
20 open source packages ship an affected version, including phlex. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
phlex RubyGems | All versions | 1.0.1 |
phlex RubyGems | All versions | 1.0.1 |
phlex RubyGems | From 1.1.0 | 1.1.1 |
phlex RubyGems | From 1.1.0 | 1.1.1 |
phlex RubyGems | From 1.2.0 | 1.2.2 |
phlex RubyGems | From 1.2.0 | 1.2.2 |
14 more packages
phlex RubyGems | From 1.3.0 | 1.3.3 |
phlex RubyGems | From 1.3.0 | 1.3.3 |
phlex RubyGems | From 1.4.0 | 1.4.1 |
phlex RubyGems | From 1.4.0 | 1.4.1 |
phlex RubyGems | From 1.5.0 | 1.5.2 |
phlex RubyGems | From 1.5.0 | 1.5.2 |
phlex RubyGems | From 1.6.0 | 1.6.2 |
phlex RubyGems | From 1.6.0 | 1.6.2 |
phlex RubyGems | From 1.7.0 | 1.7.1 |
phlex RubyGems | From 1.7.0 | 1.7.1 |
phlex RubyGems | From 1.8.0 | 1.8.2 |
phlex RubyGems | From 1.8.0 | 1.8.2 |
phlex RubyGems | From 1.9.0 | 1.9.1 |
phlex RubyGems | From 1.9.0 | 1.9.1 |
Products include Phlex Phlex.
How do I fix CVE-2024-28199?
Upgrade phlex to a fixed version for your release line: 1.0.1, 1.1.1, 1.2.2 or 1.3.3.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2024-28199 being exploited?
There is no known exploitation of CVE-2024-28199 in the wild and no public exploit code.
Sources
Also known as GHSA-242p-4v39-2v8g.