Description
Kirby is a content management system. The new link field introduced in Kirby 4 allows several different link types that each validate the entered link to the relevant URL format. It also includes a "Custom" link type for advanced use cases that don't fit any of the pre-defined link formats. As the "Custom" link type is meant to be flexible, it also allows the javascript: URL scheme. In some use cases this can be intended, but it can also be misused by attackers to execute arbitrary JavaScript code when a user or visitor clicks on a link that is generated from the contents of the link field. This vulnerability is patched in 4.1.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| getkirby | kirby | >= 4.0.0, < 4.1.1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | getkirby/cms | >= 4.0.0, < 4.1.1 | 4.1.1 | GHSA-63h4-w25c-3qv4 |