CVE-2026-69127: CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere in getkirby kirby
Kirby is an open-source content management system. Prior to 4.9.5 and from 5.0.0 through 5.5.1, the REST API error handler can return unsanitized PHP error messages that expose the full filesystem path of the Kirby installation to unauthenticated API users. This vulnerability affects all Kirby sites that have not disabled the REST API with the 'api' => false option. This issue is fixed in versions 4.9.5 and 5.5.2.
AI Analysis
Technical Summary
The vulnerability in Kirby CMS involves the REST API error handler returning unsanitized PHP error messages that disclose the full filesystem path of the Kirby installation. This occurs in versions prior to 4.9.5 and from 5.0.0 through 5.5.1. The exposure is accessible to unauthenticated API users if the REST API is enabled. The issue is resolved in versions 4.9.5 and 5.5.2 by sanitizing error messages or preventing path disclosure.
Potential Impact
The exposure of full filesystem paths can provide attackers with sensitive system information that may facilitate further attacks or reconnaissance. However, the vulnerability does not require authentication and does not directly allow code execution or data modification. The CVSS score of 6.9 (medium severity) reflects the moderate impact of information disclosure without direct integrity or availability impact.
Mitigation Recommendations
Upgrade affected Kirby CMS installations to version 4.9.5 or later if using the 4.x branch, or to version 5.5.2 or later if using the 5.x branch. Alternatively, disable the REST API by setting 'api' => false in the configuration to prevent exposure. Patch status is confirmed fixed in these versions.
CVE-2026-69127: CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere in getkirby kirby
Description
Kirby is an open-source content management system. Prior to 4.9.5 and from 5.0.0 through 5.5.1, the REST API error handler can return unsanitized PHP error messages that expose the full filesystem path of the Kirby installation to unauthenticated API users. This vulnerability affects all Kirby sites that have not disabled the REST API with the 'api' => false option. This issue is fixed in versions 4.9.5 and 5.5.2.
CVSS v4.0
Score 6.9medium
Affected software
getkirby
kirby
pkg:github/getkirby/kirbyRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Kirby CMS involves the REST API error handler returning unsanitized PHP error messages that disclose the full filesystem path of the Kirby installation. This occurs in versions prior to 4.9.5 and from 5.0.0 through 5.5.1. The exposure is accessible to unauthenticated API users if the REST API is enabled. The issue is resolved in versions 4.9.5 and 5.5.2 by sanitizing error messages or preventing path disclosure.
Potential Impact
The exposure of full filesystem paths can provide attackers with sensitive system information that may facilitate further attacks or reconnaissance. However, the vulnerability does not require authentication and does not directly allow code execution or data modification. The CVSS score of 6.9 (medium severity) reflects the moderate impact of information disclosure without direct integrity or availability impact.
Mitigation Recommendations
Upgrade affected Kirby CMS installations to version 4.9.5 or later if using the 4.x branch, or to version 5.5.2 or later if using the 5.x branch. Alternatively, disable the REST API by setting 'api' => false in the configuration to prevent exposure. Patch status is confirmed fixed in these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-03T15:20:30.217Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a762a7bbf8831d539f90bec
Added to database: 08/07/2026, 18:56:59 UTC
Last enriched: 08/15/2026, 14:57:17 UTC
Last updated: 09/21/2026, 22:01:36 UTC
Views: 50
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