{"id":"CVE-2023-46734","aliases":["BIT-symfony-2023-46734","GHSA-q847-2q57-wmr3"],"url":"https://o3.security/vulnerability/CVE-2023-46734","summary":"Symfony potential Cross-site Scripting vulnerabilities in CodeExtension filters","details":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in versions 2.0.0, 5.0.0, and 6.0.0 and prior to versions 4.4.51, 5.4.31, and 6.3.8, some Twig filters in CodeExtension use `is_safe=html` but don't actually ensure their input is safe. As of versions 4.4.51, 5.4.31, and 6.3.8, Symfony now escapes the output of the affected filters.","published":"2023-11-10T17:49:55.188Z","modified":"2026-08-15T04:19:16.058476717Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":{"score":0.00682,"percentile":0.49445,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"symfony/twig-bridge","fixedVersion":"4.4.51"},{"ecosystem":"Packagist","name":"symfony/twig-bridge","fixedVersion":"5.4.31"},{"ecosystem":"Packagist","name":"symfony/twig-bridge","fixedVersion":"6.3.8"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"4.4.51"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"5.4.31"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"6.3.8"}],"fix":{"url":"https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54","label":"symfony/symfony@5d095d5"},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00019.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46734.json"},{"type":"ADVISORY","url":"https://github.com/symfony/symfony/security/advisories/GHSA-q847-2q57-wmr3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-46734"},{"type":"FIX","url":"https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54"},{"type":"FIX","url":"https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2023-46734.yaml"},{"type":"PACKAGE","url":"https://github.com/symfony/symfony"},{"type":"WEB","url":"https://symfony.com/cve-2023-46734"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-15T04:19:16.058476717Z"}}