CVE-2025-30207

File-existence disclosure via unchecked router paths

Published May 13, 2025 · Updated May 13, 2025

Path traversal in Kirby's PHP router allows remote attackers to infer whether server files exist via crafted URLs. The router decodes a requested path, appends it to the document root, and delegates any existing path to PHP without verifying that its resolved location remains inside that root. Exploitation requires PHP's built-in server with kirby/router.php; file contents are not returned, and Apache, nginx, and Caddy deployments are unaffected.

CVSS severity2.3
Low
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Kirby's PHP router allows remote attackers to infer whether server files exist via crafted URLs. The router decodes a requested path, appends it to the document root, and delegates any existing path to PHP without verifying that its resolved location remains inside that root. Exploitation requires PHP's built-in server with kirby/router.php; file contents are not returned, and Apache, nginx, and Caddy deployments are unaffected.

The record

CVE
CVE-2025-30207
Published
May 13, 2025
Updated
May 13, 2025
Vendor
Content Folder
Product
Kirby
Classifications
CWE-22, CWE-23, T1083
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 2025CVE publishedPublication date reported by the CVE source.
  2. May 13, 2025Record 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=>= 3.10.0, < 3.10.1.2
  2. Affected versionversion=< 3.9.8.3
  3. Affected versionversion=>= 4.0.0, < 4.7.1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Content Folder · Kirbyversion=>= 3.10.0, < 3.10.1.2; version=< 3.9.8.3; version=>= 4.0.0, < 4.7.1

Published CVSS scores

2.3GitHub Security AdvisoryCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-23Relative Path Traversal
T1083File and Directory Discovery

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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