{"id":"CVE-2023-46734","title":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components","summary":"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_sa…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-79"],"vendor":"sensiolabs","product":"symfony","affected":["debian_linux = 10.0","symfony >= 2.0.0, < 4.4.51","symfony >= 5.0.0, < 5.4.31","symfony >= 6.0.0, < 6.3.8","twig-bridge >= 2.0.0, < 4.4.51","twig-bridge >= 5.0.0, < 5.4.31","twig-bridge >= 6.0.0, < 6.3.8"],"patched":["symfony 6.3.8","twig-bridge 6.3.8"],"published":"2023-11-10","updated":"2026-07-29","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-46734","references":[{"url":"https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54","label":"security-advisories@github.com"},{"url":"https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c","label":"security-advisories@github.com"},{"url":"https://github.com/symfony/symfony/security/advisories/GHSA-q847-2q57-wmr3","label":"security-advisories@github.com"},{"url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00019.html","label":"security-advisories@github.com"},{"url":"https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/symfony/symfony/security/advisories/GHSA-q847-2q57-wmr3","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00019.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00688,"epssPercentile":0.51299,"ingestedAt":"2026-07-29T18:49:21.390Z","slug":"CVE-2023-46734","body":"## Overview\n\nSymfony 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.\n\n## Affected\n\n- `debian_linux = 10.0`\n- `symfony >= 2.0.0, < 4.4.51`\n- `symfony >= 5.0.0, < 5.4.31`\n- `symfony >= 6.0.0, < 6.3.8`\n- `twig-bridge >= 2.0.0, < 4.4.51`\n- `twig-bridge >= 5.0.0, < 5.4.31`\n- `twig-bridge >= 6.0.0, < 6.3.8`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `symfony 6.3.8`\n- `twig-bridge 6.3.8`","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}