Arbitrary Code Injection Affecting getgrav/grav package, versions <2.0.7
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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- published29 Aug 2026
- disclosed19 Aug 2026
- creditUnknown
Introduced: 19 Aug 2026
NewCVE-2026-64850 (opens in a new tab)How to fix?
Upgrade getgrav/grav to version 2.0.7 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 Arbitrary Code Injection via the dynamicData function. An attacker can execute arbitrary code by supplying a crafted callback and arguments, leveraging arrayFilterRecursive as a trampoline and placing malicious commands in page frontmatter, which are then executed as the web server user when the page is viewed. This is only exploitable if the attacker has an account with either admin.pages or api.pages.write permissions.