Improper Handling of Case Sensitivity Affecting getgrav/grav package, versions <2.0.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-GETGRAVGRAV-19428016
- published29 Aug 2026
- disclosed19 Aug 2026
- creditUnknown
Introduced: 19 Aug 2026
NewCVE-2026-62673 (opens in a new tab)How to fix?
Upgrade getgrav/grav to version 2.0.4 or higher.
Overview
getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS.
Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity in the .htaccess process on case-insensitive filesystems due to the lack of case-insensitive matching for file extensions. An attacker can access sensitive configuration or source code files by requesting them with uppercase or mixed-case extensions over HTTP. This is only exploitable if the application is deployed on a case-insensitive filesystem such as Windows NTFS, macOS HFS+, or Docker volumes mounted from these systems.
Workaround
This vulnerability can be mitigated by manually adding the [NC] flag to the affected .htaccess rewrite rules to enforce case-insensitive extension matching.