getgrav Grav up to 2.0.10 Blueprint isSafeDynamicCall incomplete blacklist

Summaryinfo

A vulnerability, which was classified as critical, was found in getgrav Grav up to 2.0.10. This issue affects the function Blueprint::isSafeDynamicCall of the component Blueprint. Executing a manipulation can lead to incomplete blacklist. This vulnerability is handled as CVE-2026-69088. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in getgrav Grav up to 2.0.10. It has been declared as critical. This vulnerability affects the function Blueprint::isSafeDynamicCall of the component Blueprint. The manipulation with an unknown input leads to a incomplete blacklist vulnerability. The CWE definition for the vulnerability is CWE-184. The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete, leading to resultant weaknesses. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Grav CMS versions 2.0.7 through 2.0.10 fail to validate fully-qualified static method calls (Class::method) in blueprint dynamic-field directives because Blueprint::isSafeDynamicCall() only applies its dangerous-callable denylist to strings that do not contain '::'. An account with only page-editing rights (admin.pages, not super-admin or admin.pages_twig) can plant a directive in a page's form-field frontmatter that invokes an arbitrary public static PHP method with attacker-controlled arguments. Using built-in gadget methods this allows reading of any server-readable file (disclosed to anonymous visitors of the crafted page) and arbitrary creation/copying of files and directories under the web-server account. Fixed in 2.0.11.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-69088 since 08/03/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1562.006.

Upgrading to version 2.0.11 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-52281). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• getgrav

Name

• Grav

Version

• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.4
• 2.0.5
• 2.0.6
• 2.0.7
• 2.0.8
• 2.0.9
• 2.0.10

Website

• Product: https://github.com/getgrav/grav/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion