What’s Vulnerable › Vulnerabilities

CVE-2026-54004: Kirby: Access to files of top-level drafts is not protected by permissions

• Severity: medium (CVSS 6.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% 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 with content.fileRedirects enabled could redirect unauthenticated clean file URL requests for files stored in top-level draft pages to physical media URLs without checking page access permissions or preview tokens, leading to disclosure of draft file contents. 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/5b9a0ed587575e39156d37fa42ca7f6c73e121f7
• https://github.com/getkirby/kirby/commit/bc721080cd8dd4dcb7fc20b3fd0460ee8d0603b0
• 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-89cp-7p28-jffg

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