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CVE-2026-112776GHSA-7rr3-4jcm-x526

Craft CMS 5.0.0 before 5.11.0 GraphQL Site-Scope Bypass via Mutations

craftcms cms
Open in ThreatlineRecord JSON
CVSS
9.3Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.30%Chance of exploitation activity in the next 30 days, higher than 21% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in5.11.0Fixed versionCVE List
Published19 Oct 2026Updated 20 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Craft CMS from 5.0.0 before 5.11.0 contains an authorization bypass vulnerability that allows site-scoped GraphQL tokens to mutate other sites' content because requireAllowedSite() is not enforced. Attackers holding a site-A token can create entries in site B via supplied siteId and delete entries, categories, tags, and assets shared across sites.

Text from CVE List

Affected versions 2

  • cmsaffected: 5.0.0 before 5.11.0CVE List
  • cmsunaffected: 5.11.0CVE List

References 2