{"id":"CVE-2026-100870","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-100870","summary":"Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 build administrator password-reset links using the request Host header without validation, allowing unauthenticated…","details":"Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 build administrator password-reset links using the request Host header without validation, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can request password resets for known administrator email addresses with forged Host headers to intercept valid reset tokens and take over administrator accounts.","published":"2026-09-27T13:16:38.240","modified":"2026-09-27T13:16:38.240","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/Sylius/Sylius/commit/1255d75b20d3d88a5e5c8d46791504134c838480","label":"Sylius/Sylius@1255d75"},"references":[{"type":"WEB","url":"https://github.com/Sylius/Sylius"},{"type":"WEB","url":"https://github.com/Sylius/Sylius/commit/1255d75b20d3d88a5e5c8d46791504134c838480"},{"type":"WEB","url":"https://github.com/Sylius/Sylius/pull/19215"},{"type":"WEB","url":"https://github.com/Sylius/Sylius/releases/tag/v2.2.9"},{"type":"WEB","url":"https://github.com/Sylius/Sylius/security/advisories/GHSA-77w3-2367-7xvq"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/sylius-before-1.12.25-1.13.17-1.14.20-2.1.16-and-2.2.9-admin-password-reset-poisoning-via-host-header"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-27T13:16:38.240"}}