GHSA-x87m-36g7-6mpw
Yii2 Gii Cross-site Scripting vulnerability
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | yiisoft/yii2-gii | <= 2.2.4 | no fix listed |
Details
As written in the advisory (Markdown source, shown as plain text).
Some fields like Message Category (requires I18N enabled) in Model Generator, CRUD Generator or Form Generator, Author Name in Extension Generator, etc. are being cached without sanitisation of their contents when the Preview button is pressed. This leads to possibility of injecting malicious javascript in specified pages by placing it in said fields and caching it by pressing Preview button. On each consequent visit of specified pages malicious javascript will be loaded from server and executed in client's browser.
References
External links from the advisory. They lead to third-party sites.