{"id":"CVE-2026-100870","title":"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-contro…","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 attackers to redirect reset tokens to attacker-contro…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-640"],"vendor":"Sylius","product":"sylius/sylius","affected":["sylius/sylius >= 1.12.0 < 1.12.25","sylius/sylius >= 1.13.0 < 1.13.17","sylius/sylius >= 1.14.0 < 1.14.20","sylius/sylius >= 2.0.0 < 2.1.16","sylius/sylius >= 2.2.0 < 2.2.9"],"published":"2026-09-27","updated":"2026-09-27","sourceUpdated":"2026-09-27T13:16:38.240","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100870","references":[{"url":"https://github.com/Sylius/Sylius","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Sylius/Sylius/commit/1255d75b20d3d88a5e5c8d46791504134c838480","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Sylius/Sylius/pull/19215","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Sylius/Sylius/releases/tag/v2.2.9","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Sylius/Sylius/security/advisories/GHSA-77w3-2367-7xvq","label":"disclosure@vulncheck.com"},{"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","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-27T13:53:26.574Z","slug":"CVE-2026-100870","body":"## Overview\n\nSylius 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}