CVE-2026-54004Network attack vector

Draft file disclosure via unchecked clean redirects

Published Jul 9, 2026 · Updated Jul 9, 2026

Missing authorization in Kirby file redirects in 4.9.3 and earlier and 5.0.0 through 5.4.3 allows remote attackers to read top-level draft files. The clean-file redirect route resolves a file in a top-level draft directly to its physical media URL without checking page access or a preview token. Exploitation requires content.fileRedirects to be enabled and knowledge of the full draft-file path; Kirby 5 disables this option by default.

CVSS severity6.3
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Kirby file redirects in 4.9.3 and earlier and 5.0.0 through 5.4.3 allows remote attackers to read top-level draft files. The clean-file redirect route resolves a file in a top-level draft directly to its physical media URL without checking page access or a preview token. Exploitation requires content.fileRedirects to be enabled and knowledge of the full draft-file path; Kirby 5 disables this option by default.

The record

CVE
CVE-2026-54004
Published
Jul 9, 2026
Updated
Jul 9, 2026
Vendor
Content Folder
Product
Kirby
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.9.4
  2. Affected versionversion=>= 5.0.0, < 5.4.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Content Folder · Kirbyversion=< 4.9.4; version=>= 5.0.0, < 5.4.4

Published CVSS scores

6.3Content FolderCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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