{"action":"Upgrade ci4-cms-erp/ci4ms to 0.31.0.0 or later.","affected":[{"fixed":"0.31.0.0","introduced":"0"}],"component":"ci4-cms-erp/ci4ms","cve_ids":["CVE-2026-34559"],"ecosystem":"Packagist","epss":0.00324,"exploited":false,"fixed_versions":["0.31.0.0"],"ghsa_id":"GHSA-4333-387x-w245","id":"tcs_01M5KETFKKGE18949TPJ9N6CKG","modified_at":"2026-04-06T17:39:27.691339Z","published_at":"2026-04-01T21:53:01Z","references":["https://osv.dev/vulnerability/GHSA-4333-387x-w245","https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-4333-387x-w245","https://nvd.nist.gov/vuln/detail/CVE-2026-34559","https://github.com/ci4-cms-erp/ci4ms","https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.0.0"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"GHSA-4333-387x-w245","url":"https://osv.dev/vulnerability/GHSA-4333-387x-w245"}],"summary":"CI4MS: Blogs Tags Full Account Takeover for All-Roles & Privilege-Escalation via Stored DOM XSS"}