Grav API Plugin up to 1.0.17 BlueprintController injectSecurityTab privileges management

Summaryinfo

A vulnerability has been found in Grav API Plugin up to 1.0.17 and classified as critical. This affects the function injectSecurityTab of the component BlueprintController. This manipulation causes privileges management. This vulnerability is registered as CVE-2026-80204. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Grav API Plugin up to 1.0.17. It has been declared as critical. Affected by this vulnerability is the function injectSecurityTab of the component BlueprintController. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The Grav API plugin (getgrav/grav-plugin-api) before 1.0.18 does not apply the API-key scope cap in the injectSecurityTab() function of BlueprintController when deciding whether a page's security/permissions blueprint section is editable. Because the function performs raw isSuperAdmin()/hasPermission() checks without a request parameter, it cannot enforce scopeAllows(). A caller holding a scoped API key may therefore see (and potentially edit) page permission fields beyond the scope granted to the key. The end-to-end write-time impact was not fully confirmed by the reporter.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-80204 since 08/26/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 1.0.18 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-66395). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Automation Software

Vendor

• Grav

Name

• API Plugin

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4
• 1.0.5
• 1.0.6
• 1.0.7
• 1.0.8
• 1.0.9
• 1.0.10
• 1.0.11
• 1.0.12
• 1.0.13
• 1.0.14
• 1.0.15
• 1.0.16
• 1.0.17

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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• 🔒
• 🔒

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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