{"action":"Upgrade typo3/cms-form to 8.7.40 or later.","affected":[{"fixed":"8.7.40","introduced":"8.0.0"},{"fixed":"9.5.25","introduced":"9.0.0"},{"fixed":"10.4.14","introduced":"10.0.0"},{"fixed":"11.1.1","introduced":"11.0.0"}],"component":"typo3/cms-form","cve_ids":["CVE-2021-21357"],"ecosystem":"Packagist","epss":0.01606,"exploited":false,"fixed_versions":["8.7.40","9.5.25","10.4.14","11.1.1"],"ghsa_id":"GHSA-3vg7-jw9m-pc3f","id":"tcs_01M5KETAFX9X3789DWQYZPWKVG","modified_at":"2026-07-08T06:28:31.297381678Z","published_at":"2021-03-23T01:53:57Z","references":["https://osv.dev/vulnerability/GHSA-3vg7-jw9m-pc3f","https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-3vg7-jw9m-pc3f","https://nvd.nist.gov/vuln/detail/CVE-2021-21357","https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-21357.yaml","https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-21357.yaml","https://packagist.org/packages/typo3/cms-form","https://typo3.org/security/advisory/typo3-core-sa-2021-003"],"severity":{"label":"high","score":8.3},"sources":[{"source":"osv","source_id":"GHSA-3vg7-jw9m-pc3f","url":"https://osv.dev/vulnerability/GHSA-3vg7-jw9m-pc3f"}],"summary":"Broken Access Control in Form Framework"}