Vulnerability · Published Aug 19, 2026 · Assigned by GitHub_M

CVE-2026-64850Grav: Remote code execution via unrestricted callable in Blueprint::dynamicData()

High 8.7

In plain English

A high-severity code injection in grav from getgrav. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.5%top 59.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Grav is a file-based Web platform. Prior to 2.0.7, Grav Blueprint::dynamicData() in system/src/Grav/Common/Data/Blueprint.php sends an editor-controlled Class::method provider and arguments to call_user_func_array() without rejecting dangerous callback parameters. An account with admin.pages or api.pages.write can use Grav\Common\Utils::arrayFilterRecursive() as a trampoline with system as the callback, place a command in page frontmatter, and execute that command as the web server user when the page is viewed. This issue is fixed in version 2.0.7.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	getgrav/grav	2.0.7	GHSA-fj2p-qj2f-74v5

Affected products (as reported)

Vendor	Product	Versions
getgrav	grav	< 2.0.7

Weakness: CWE-94 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

https://github.com/getgrav/grav/security/advisories/GHSA-fj2p-qj2f-74v5 x_refsource_CONFIRM
https://github.com/getgrav/grav/commit/acffa34cbb0787fee87c609e0d6289e904fee33c x_refsource_MISC
https://github.com/getgrav/grav/releases/tag/2.0.7 x_refsource_MISC