CVE-2024-27087
published 2024-02-26CVE-2024-27087: 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…
PriorityP428medium5.4CVSS 3.1
AVNACLPRLUIRSCCLILAN
EPSS
0.35%
26.7th percentile
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
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| getkirby | cms | >= 4.0.0 < 4.1.1 | 4.1.1 |
| getkirby | kirby | — | — |
| getkirby | kirby | >= 4.0.0 < 4.1.1 | 4.1.1 |
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GHSA
Kirby vulnerable to Cross-site scripting (XSS) in the link field "Custom" type
ghsa·2024-02-26
CVE-2024-27087 [MEDIUM] CWE-79 Kirby vulnerable to Cross-site scripting (XSS) in the link field "Custom" type
Kirby vulnerable to Cross-site scripting (XSS) in the link field "Custom" type
### TL;DR
This vulnerability affects Kirby sites that use the new [link field](https://getkirby.com/docs/reference/panel/fields/link) and output the entered link without additional validation or sanitization.
The attack commonly requires user interaction by another user or visitor.
The link dialog of the writer field is *not* affected as the writer field content is automatically sanitized by the Kirby backend code. You are also already protected if you limit the acceptable link types with the `options` field property.
----
### Introduction
Cross-site scripting (XSS) is a type of vulnerability that allows to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Pan
OSV
Kirby vulnerable to Cross-site scripting (XSS) in the link field "Custom" type
osv·2024-02-26
CVE-2024-27087 [MEDIUM] Kirby vulnerable to Cross-site scripting (XSS) in the link field "Custom" type
Kirby vulnerable to Cross-site scripting (XSS) in the link field "Custom" type
### TL;DR
This vulnerability affects Kirby sites that use the new [link field](https://getkirby.com/docs/reference/panel/fields/link) and output the entered link without additional validation or sanitization.
The attack commonly requires user interaction by another user or visitor.
The link dialog of the writer field is *not* affected as the writer field content is automatically sanitized by the Kirby backend code. You are also already protected if you limit the acceptable link types with the `options` field property.
----
### Introduction
Cross-site scripting (XSS) is a type of vulnerability that allows to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Pan
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/getkirby/kirby/commit/cda3dd9a15228d35e62ff86cfa87a67e7c687437https://github.com/getkirby/kirby/security/advisories/GHSA-63h4-w25c-3qv4https://github.com/getkirby/kirby/commit/cda3dd9a15228d35e62ff86cfa87a67e7c687437https://github.com/getkirby/kirby/security/advisories/GHSA-63h4-w25c-3qv4
2024-02-26
Published