Kirby: Arbitrary Method Call via REST API search and collection query endpoints
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- 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. Prior to 4.9.1 and 5.4.1, Kirby did not validate the model attributes that were used in its collection queries, allowing attackers to include arbitrary model methods in their queries. This includes methods with sensitive data such as password() (disclosing the password hash) or root() (disclosing the absolute filesystem path on the server) as well as methods that perform impactful actions such as loginPasswordless() (causing a privilege escalation to another user) or delete() (deleting all queried models in one go if the authenticated user has appropriate permissions). This issue has been fixed in versions 4.9.1 and 5.4.1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| getkirby | kirby | before 4.9.1; 5.0.0 to before 5.4.1 | 4.9.1, 5.4.1 | Patch available | CNA |
| — | getkirby/cms (Packagist) | before 4.9.1 | 4.9.1 | Patch available | GHSA-86rh-h242-j8xp |
| — | getkirby/cms (Packagist) | 5.0.0 to before 5.4.1 | 5.4.1 | Patch available | GHSA-86rh-h242-j8xp |
- kirby Vendorgetkirby Affected before 4.9.1; 5.0.0 to before 5.4.1 Fixed in 4.9.1, 5.4.1 Patch available CNA
- getkirby/cms (Packagist) Vendor— Affected before 4.9.1 Fixed in 4.9.1 Patch available GHSA-86rh-h242-j8xp
- getkirby/cms (Packagist) Vendor— Affected 5.0.0 to before 5.4.1 Fixed in 5.4.1 Patch available GHSA-86rh-h242-j8xp
Remediation
- Fix · CNA kirby (getkirby) Fixed in 4.9.1, 5.4.1
- Fix · GHSA-86rh-h242-j8xp getkirby/cms (Packagist) Fixed in 4.9.1 Advisory →
- Fix · GHSA-86rh-h242-j8xp getkirby/cms (Packagist) Fixed in 5.4.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-44174
- 2026-10-03 Alias added: GHSA-86rh-h242-j8xp
References
More getkirby vulnerabilities
- 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
Sources
- CVE-2026-44174 · CVE Program
- CVE-2026-44174 · NVD
- FIRST EPSS
- GHSA-86rh-h242-j8xp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences