Intel

AIKIDO-2026-786302

craftcms/cms is vulnerable to Authorization Bypass

Authorization BypassCVE-2026-79990 Published Yesterday

87

High Risk

This Affects:

PHPcraftcms/cms
5.0.0 - 5.10.10
Fixed in 5.10.11
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TL;DR

The saveEntry and deleteEntry GraphQL mutation resolvers read siteId directly from the mutation arguments instead of going through the argument handling that restricts requests to the sites allowed by the schema. A GraphQL token scoped to one site can therefore create, modify, or delete entries on a different site the token was never granted access to. The fix routes mutation arguments through the same site-scope check used for queries.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range and you issue GraphQL tokens scoped to a specific site in a multi-site installation.

Background info

craftcms/cms is vulnerable to Authorization Bypass in versions 5.0.0 - 5.10.10.

How to fix this

Upgrade the craftcms/cms library to the patch version.

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