CVE-2024-28121

stimulus_reflex is a system to extend the capabilities of both Rails and Stimulus by intercepting user interactions and passing them to Rails over real-time websockets. In affected versions more methods than expected can be called on reflex instances. Being able to call some of them has security implications. To invoke a reflex a websocket message of the following shape is sent: `\"target\":\"[class_name]#[method_name]\",\"args\":[]`. The server will proceed to instantiate `reflex` using the provided `class_name` as long as it extends `StimulusReflex::Reflex`. It then attempts to call `method_name` on the instance with the provided arguments. This is problematic as `reflex.method method_name` can be more methods that those explicitly specified by the developer in their reflex class. A good example is the instance_variable_set method. This vulnerability has been patched in versions 3.4.2 and 3.5.0.rc4. Users unable to upgrade should: see the backing GHSA advisory for mitigation advice.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:stimulusreflex:stimulusrelfex:*:*:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre1:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre10:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre2:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre3:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre4:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre5:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre6:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre7:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre8:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre9:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:rc1:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:rc2:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:rc3:*:*:*:*:*:*

History

03 Dec 2025, 17:13

Type Values Removed Values Added
First Time Stimulusreflex
Stimulusreflex stimulusrelfex
References () http://seclists.org/fulldisclosure/2024/Mar/16 - () http://seclists.org/fulldisclosure/2024/Mar/16 - Exploit, Third Party Advisory
References () https://github.com/stimulusreflex/stimulus_reflex/blob/0211cad7d60fe96838587f159d657e44cee51b9b/app/channels/stimulus_reflex/channel.rb#L83 - () https://github.com/stimulusreflex/stimulus_reflex/blob/0211cad7d60fe96838587f159d657e44cee51b9b/app/channels/stimulus_reflex/channel.rb#L83 - Technical Description
References () https://github.com/stimulusreflex/stimulus_reflex/commit/538582d240439aab76066c72335ea92096cd0c7f - () https://github.com/stimulusreflex/stimulus_reflex/commit/538582d240439aab76066c72335ea92096cd0c7f - Patch
References () https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.4.2 - () https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.4.2 - Product, Release Notes
References () https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.5.0.rc4 - () https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.5.0.rc4 - Product, Release Notes
References () https://github.com/stimulusreflex/stimulus_reflex/security/advisories/GHSA-f78j-4w3g-4q65 - () https://github.com/stimulusreflex/stimulus_reflex/security/advisories/GHSA-f78j-4w3g-4q65 - Vendor Advisory, Exploit
CPE cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre9:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre7:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:rc3:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:rc2:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre4:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre5:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre10:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre2:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre8:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre3:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:*:*:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:rc1:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre1:*:*:*:*:*:*
cpe:2.3:a:stimulusreflex:stimulusrelfex:3.5.0:pre6:*:*:*:*:*:*

Information

Published : 2024-03-12 20:15

Updated : 2025-12-03 17:13


NVD link : CVE-2024-28121

Mitre link : CVE-2024-28121

CVE.ORG link : CVE-2024-28121


JSON object : View

Products Affected

stimulusreflex

  • stimulusrelfex
CWE
CWE-470

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')