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Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.6.5, through the HTML rendering view, scripts can be injected and executed. The frontend provides a function to visualize the HTML content of a current chat. The content is embedded in an iFrame with the allow-scripts allow-forms allow-same-origin sandbox directive. This means that the content is placed in a sandbox but with permission to execute scripts and access the parent’s data (e.g., local storage). As a result, only a few functions are restricted (e.g., displaying an alert box), but in effect, the sandbox attribute is largely nullified. This vulnerability is fixed in 0.6.5.
Base Score
7.7| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| open-webui(PyPI) | 0 | 0.6.5 | N/A |
| Base Score | 7.7 |
|---|---|
| Vector String | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N |
| Base Severity | High |
| Version | 3.1 |
| Attack Vector (AV) | NETWORK |
