{"action":"Upgrade contao/core-bundle to 4.9.16 or later.","affected":[{"fixed":"4.9.16","introduced":"4.5.0"},{"fixed":"4.11.5","introduced":"4.10.0"}],"component":"contao/core-bundle","cve_ids":["CVE-2021-35210"],"ecosystem":"Packagist","epss":0.0074,"exploited":false,"fixed_versions":["4.9.16","4.11.5"],"ghsa_id":"GHSA-h58v-c6rf-g9f7","id":"tcs_01M5KF3BCSCYNYR6K5KM5KHEWR","modified_at":"2026-09-10T03:49:06.413015318Z","published_at":"2021-07-01T17:00:04Z","references":["https://osv.dev/vulnerability/GHSA-h58v-c6rf-g9f7","https://github.com/contao/contao/security/advisories/GHSA-h58v-c6rf-g9f7","https://nvd.nist.gov/vuln/detail/CVE-2021-35210","https://contao.org/en/security-advisories/cross-site-scripting-in-the-system-log-2021.html","https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/contao/CVE-2021-35210.yaml","https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/core-bundle/CVE-2021-35210.yaml","https://github.com/contao/contao"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"GHSA-h58v-c6rf-g9f7","url":"https://osv.dev/vulnerability/GHSA-h58v-c6rf-g9f7"}],"summary":"Cross site scripting in the system log"}