Kirby is a content management system. In Kirby CMS versions 3.5.5 and 3.5.6, the Panel's `ListItem` component (used in the pages and files section for example) displayed HTML in page titles as it is. This could be used for cross-site scripting (XSS) attacks. Malicious authenticated Panel users can escalate their privileges if they get access to the Panel session of an admin user. Visitors without Panel access can use the attack vector if the site allows changing site data from a frontend form. Kirby 3.5.7 patches the vulnerability. As a partial workaround, site administrators can protect against attacks from visitors without Panel access by validating or sanitizing provided data from the frontend form.
References
Link Resource
https://github.com/getkirby/kirby/releases/tag/3.5.7 Patch Release Notes Third Party Advisory
https://github.com/getkirby/kirby/security/advisories/GHSA-2f2w-349x-vrqm Patch Release Notes Third Party Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: GitHub_M

Published: 2021-07-02T14:45:11

Updated: 2021-07-02T14:45:11

Reserved: 2021-05-12T00:00:00


Link: CVE-2021-32735

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2021-07-02T15:15:10.503

Modified: 2021-07-06T18:21:27.780


Link: CVE-2021-32735

JSON object: View

cve-icon Redhat Information

No data.