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TI-2025-21498 Aliases CVE-2025-30159GHSA-fw82-87p8-v6hp

Kirby vulnerable to path traversal of snippet names in the `snippet()` helper

Priority LOW 29CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

Summary

Kirby is an open-source content management system. A vulnerability in versions prior to 3.9.8.3, 3.10.1.2, and 4.7.1 affects all Kirby sites that use the `snippet()` helper or `$kirby->snippet()` method with a dynamic snippet name (such as a snippet name that depends on request or user data). Sites that only use fixed calls to the `snippet()` helper/`$kirby->snippet()` method (i.e. calls with a simple string for the snippet name) are *not* affected. A missing path traversal check allowed attackers to navigate and access all files on the server that were accessible to the PHP process, including files outside of the snippets root or even outside of the Kirby installation. PHP code within such files was executed. Such attacks first require an attack vector in the site code that is caused by dynamic snippet names, such as `snippet('tags-' . get('tags'))`. It generally also requires knowledge of the site structure and the server's file system by the attacker, although it can be possible to find vulnerable setups through automated methods such as fuzzing. In a vulnerable setup, this could cause damage to the confidentiality and integrity of the server. The problem has been patched in Kirby 3.9.8.3, Kirby 3.10.1.2, and Kirby 4.7.1. In all of the mentioned releases, Kirby maintainers have added a check for the snippet path that ensures that the resulting path is contained within the configured snippets root. Snippet paths that point outside of the snippets root will not be loaded.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00714 53rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed kirby (getkirby): 3.9.8.3, 3.10.1.2, 4.7.1getkirby/kirby (Packagist): 3.9.8.3, 3.10.1.2, 4.7.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
getkirbykirbybefore 3.9.8.3; 3.10.0 to before 3.10.1.2; 4.0.0 to before 4.7.13.9.8.3, 3.10.1.2, 4.7.1Patch availableCNA
—getkirby/kirby (Packagist)before 3.9.8.33.9.8.3Patch availableGHSA-fw82-87p8-v6hp
—getkirby/kirby (Packagist)3.10.0 to before 3.10.1.23.10.1.2Patch availableGHSA-fw82-87p8-v6hp
—getkirby/kirby (Packagist)4.0.0 to before 4.7.14.7.1Patch availableGHSA-fw82-87p8-v6hp
  • kirby Vendorgetkirby Affected before 3.9.8.3; 3.10.0 to before 3.10.1.2; 4.0.0 to before 4.7.1 Fixed in 3.9.8.3, 3.10.1.2, 4.7.1 Patch available CNA
  • getkirby/kirby (Packagist) Vendor— Affected before 3.9.8.3 Fixed in 3.9.8.3 Patch available GHSA-fw82-87p8-v6hp
  • getkirby/kirby (Packagist) Vendor— Affected 3.10.0 to before 3.10.1.2 Fixed in 3.10.1.2 Patch available GHSA-fw82-87p8-v6hp
  • getkirby/kirby (Packagist) Vendor— Affected 4.0.0 to before 4.7.1 Fixed in 4.7.1 Patch available GHSA-fw82-87p8-v6hp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*before 3.9.8.3; 3.10.0 to before 3.10.1.2; 4.0.0 to before 4.7.1Vulnerablegetkirby
  • cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:* Versions before 3.9.8.3; 3.10.0 to before 3.10.1.2; 4.0.0 to before 4.7.1 Vulnerable ·getkirby

Remediation

  • Fix · CNA kirby (getkirby) Fixed in 3.9.8.3, 3.10.1.2, 4.7.1
  • Fix · GHSA-fw82-87p8-v6hp getkirby/kirby (Packagist) Fixed in 3.9.8.3 Advisory →
  • Fix · GHSA-fw82-87p8-v6hp getkirby/kirby (Packagist) Fixed in 3.10.1.2 Advisory →
  • Fix · GHSA-fw82-87p8-v6hp getkirby/kirby (Packagist) Fixed in 4.7.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-30159
  2. 2026-10-03 Alias added: GHSA-fw82-87p8-v6hp

References

Exploit 1

Advisory 1

Other 5

  • TI-2024-17440 An arbitrary file upload vulnerability in the Profile Image module of Kirby CMS v4.1.0… CVSS 3.1HIGH 8.8
  • TI-2024-17439 An HTML injection vulnerability exists in the Edit Content Layout module of Kirby CMS… CVSS 3.1HIGH 7.1
  • TI-2026-23396 Kirby CMS through 5.1.4 allows an authenticated user with 'Editor' permissions to cause a… CVSS 3.1MEDIUM 6.5
  • TI-2024-17441 A stored cross-site scripting (XSS) vulnerability in the Edit Content Layout module of… CVSS 3.1MEDIUM 6.1
  • TI-2018-10413 An issue was discovered in Kirby 2.5.12. CVSS 3.1MEDIUM 5.4
  • TI-2024-17438 Kirby CMS v4.1.0 was discovered to contain a reflected self-XSS vulnerability via the URL parameter. CVSS 3.1MEDIUM 4.7
See all 40 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences