CVE-2026-49274 Kirby: `pages.access` permission is not checked in the pages picker for parent pages
Authenticated users can bypass page access restrictions to confirm existence and retrieve titles of inaccessible parent pages in Kirby CMS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-49274?
CVE-2026-49274 is a medium-severity missing authorization vulnerability in getkirby kirby, published on 9 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites using the pages field with roles that have the pages.access permission disabled allowed authenticated users to provide an inaccessible parent page or site to the page picker backend and confirm arbitrary page existence and retrieve title field values. This issue is fixed in versions 4.9.4 and 5.4.4.
Weakness: CWE-862
Which versions are affected by CVE-2026-49274?
4 open source packages ship an affected version, including getkirby/cms.
| Package | Affected | Fixed in |
|---|---|---|
getkirby/cms Packagist | All versions | 4.9.4 |
getkirby/cms Packagist | All versions | 4.9.4 |
getkirby/cms Packagist | From 5.0.0-alpha.1 | 5.4.4 |
getkirby/cms Packagist | From 5.0.0-alpha.1 | 5.4.4 |
How do I fix CVE-2026-49274?
Upgrade getkirby/cms to a fixed version for your release line: 4.9.4 or 5.4.4.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-49274 being exploited?
There is no known exploitation of CVE-2026-49274 in the wild and no public exploit code.
Sources
Also known as GHSA-23q2-54qv-rq5x.