CVE-2026-112776
Craft CMS 5.0.0 before 5.11.0 GraphQL Site-Scope Bypass via Mutations
- State
- Published
- Severity
- 9.3 Critical
- Published
- Oct 19, 2026
- Updated
- Oct 20, 2026
- Reserved
- Oct 19, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
cmscraftcms |
|
References
- GitHub Security Advisory (GHSA-7rr3-4jcm-x526)vendor-advisory
- VulnCheck Advisory: Craft CMS 5.0.0 before 5.11.0 GraphQL Site-Scope Bypass via Mutationsthird-party-advisory
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