Avo is an open source ruby on rails admin panel creation framework. The polymorphic field type stores the classes to operate on when updating a record with user input, and does not validate them in the back end. This can lead to unexpected behavior, remote code execution, or application crashes when viewing a manipulated record. This issue has been addressed in commit `ec117882d` which is expected to be included in subsequent releases. Users are advised to limit access to untrusted users until a new release is made.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
The product uses external input with reflection to select which classes or code to use, but it does not sufficiently prevent the input from selecting improper classes or code.
| Link | Tags |
|---|---|
| https://github.com/avo-hq/avo/security/advisories/GHSA-86h2-2g4g-29qx | vendor advisory exploit |
| https://github.com/avo-hq/avo/commit/ec117882ddb1b519481bdd046dc3cfa4474e6e17 | patch |