{"id":"CVE-2026-49977","aliases":["GHSA-jxj7-g6gm-49j7"],"url":"https://o3.security/vulnerability/CVE-2026-49977","summary":"tarteaucitron.js: data-cookie attribute can be used to delete arbitrary cookies","details":"tarteaucitron.js is a compliant and accessible cookie banner. Prior to 1.33.0, tarteaucitron.cookie.purge() is called on any element with the purgeBtn class and does not check whether the element is a legitimate tarteaucitron button or whether the cookie corresponds to a service handled by tarteaucitron. If an attacker can write HTML with data attributes, an element with data-cookie can silently delete a non-HttpOnly cookie with a known name when clicked by a user. This issue is fixed in version 1.33.0.","published":"2026-07-17T20:21:21.476Z","modified":"2026-08-12T03:51:48.821178241Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"},"epss":{"score":0.00354,"percentile":0.28989,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"tarteaucitronjs","fixedVersion":"1.33.0"}],"fix":{"url":"https://github.com/AmauriC/tarteaucitron.js/commit/24b5464400ae2ff1ad96a092c629b9d632b9cc93","label":"AmauriC/tarteaucitron.js@24b5464"},"references":[{"type":"WEB","url":"https://github.com/AmauriC/tarteaucitron.js/releases/tag/v1.33.0"},{"type":"WEB","url":"https://www.drupal.org/sa-contrib-2026-040"},{"type":"ADVISORY","url":"https://github.com/AmauriC/tarteaucitron.js/security/advisories/GHSA-jxj7-g6gm-49j7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49977.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49977"},{"type":"FIX","url":"https://github.com/AmauriC/tarteaucitron.js/commit/24b5464400ae2ff1ad96a092c629b9d632b9cc93"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:48.821178241Z"}}