by Kastro
Paper/Archive/CVE-2026-112776

CVE-2026-112776

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

EPSS 0.4%CVSS 9.8
critical.is priorityof 100
36
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 32.6.326 × 206.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
cms5.0.0 – < 5.11.05.11.0CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorygithub.com/craftcms/cms/security/advisories/GHSA-7rr3-4jcm-x526writeupvulncheck.com/advisories/craft-cms-5.0.0-before-5.11.0-graphql-site-scope-bypass-via-mutations