CVE-2026-54005: 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
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-54005
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-540050.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-54005 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Kirby is an
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- unknownCVE-2026-54004: Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites with …nvd · 2026-07-09
- unknownCVE-2026-54003: Kirby is an open-source content management system. Prior to 4.9.4 and from 5.4.4, Kirby sites …nvd · 2026-07-09
- unknownCVE-2026-54002: Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and p…nvd · 2026-07-09
- unknownCVE-2026-50188: Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites and p…nvd · 2026-07-09
- unknownCVE-2026-49276: Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites using…nvd · 2026-07-09
- unknownCVE-2026-49274: Kirby is an open-source content management system. Prior to 4.9.4 and 5.4.4, Kirby sites using…nvd · 2026-07-09
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