{"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-2026-34558"],"ecosystem":"Packagist","epss":0.00319,"exploited":false,"fixed_versions":["0.31.0.0"],"ghsa_id":"GHSA-v77r-xg3p-75g7","id":"tcs_01M5KF8XGT6T8MRTVFY79840TK","modified_at":"2026-04-01T00:26:25.623821Z","published_at":"2026-04-01T00:09:24Z","references":["https://osv.dev/vulnerability/GHSA-v77r-xg3p-75g7","https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-v77r-xg3p-75g7","https://nvd.nist.gov/vuln/detail/CVE-2026-34558","https://github.com/ci4-cms-erp/ci4ms"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"GHSA-v77r-xg3p-75g7","url":"https://osv.dev/vulnerability/GHSA-v77r-xg3p-75g7"}],"summary":"CI4MS: Methods Management Full Account Takeover for All-Roles & Privilege-Escalation via Stored DOM XSS"}