CVE-2026-54005: Kirby: `pages.access` permission is not checked in the `site/find` REST API route

Severity: high (CVSS 7.1 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-09 · updated 2026-10-25
Weakness: CWE-862

Description

Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites where a role has the pages.access permission disabled allowed authenticated users who know or guess page IDs or UUIDs to retrieve page information, including full content and metadata, for arbitrary published pages through the /api/site/find route without authorization to access those pages. This issue is fixed in versions 4.9.4 and 5.4.4.

Affected products

getkirby kirby: before 4.9.4; from 5.0.0, < 5.4.4

References

https://github.com/getkirby/kirby/commit/a16dbd4329293c2c4b9a375d2badcb27c6337004
https://github.com/getkirby/kirby/commit/b22d0b64b6478ce6871dc7ec3368d7afaf078688
https://github.com/getkirby/kirby/releases/tag/4.9.4
https://github.com/getkirby/kirby/releases/tag/5.4.4
https://github.com/getkirby/kirby/security/advisories/GHSA-r3w8-2c5r-h9j9

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