{"id":"CVE-2021-23803","aliases":["GHSA-6pj2-5fqq-xvjc","SNYK-PHP-LATTELATTE-1932226"],"url":"https://o3.security/vulnerability/CVE-2021-23803","summary":"Incorrect Authorization in latte/latte","details":"This affects the package latte/latte before 2.10.6. There is a way to bypass allowFunctions that will affect the security of the application. When the template is set to allow/disallow the use of certain functions, adding control characters (x00-x08) after the function will bypass these restrictions.","published":"2021-12-17T20:15:08.287Z","modified":"2026-07-09T14:43:49.170925Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.01576,"percentile":0.7315,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"Packagist","name":"latte/latte","fixedVersion":"2.10.6"}],"fix":{"url":"https://github.com/nette/latte/commit/227c86eda9a8a6d060ea8501923e768b6d992210","label":"nette/latte@227c86e"},"references":[{"type":"FIX","url":"https://github.com/nette/latte/commit/227c86eda9a8a6d060ea8501923e768b6d992210"},{"type":"FIX","url":"https://github.com/nette/latte/issues/279"},{"type":"FIX","url":"https://snyk.io/vuln/SNYK-PHP-LATTELATTE-1932226"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T14:43:49.170925Z"}}