{"id":"CVE-2026-100870","aliases":["EUVD-2026-87942","GHSA-753f-ggfx-2h8w","GHSA-77w3-2367-7xvq"],"status":"published","title":"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","description":"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.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00311,"percentile":0.24282,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-640"],"published":"2026-09-27T13:09:54Z","modified":"2026-10-28T02:30:37Z","products":[{"vendor":"sylius","product":"sylius"}],"references":[{"url":"https://github.com/Sylius/Sylius/security/advisories/GHSA-77w3-2367-7xvq","tags":["vendor-advisory","advisory"]},{"url":"https://github.com/Sylius/Sylius/pull/19215","tags":["patch","issue-tracking","fix"]},{"url":"https://github.com/Sylius/Sylius/commit/1255d75b20d3d88a5e5c8d46791504134c838480","tags":["patch","fix"]},{"url":"https://github.com/Sylius/Sylius/releases/tag/v2.2.9","tags":["release-notes","advisory"]},{"url":"https://github.com/Sylius/Sylius","tags":["product","package"]},{"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","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100870","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-753f-ggfx-2h8w"},{"url":"https://packagist.org","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100870.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-100870","title":"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","description":"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.","status":"published","published":"2026-09-27T13:09:54.715Z","modified":"2026-10-06T13:36:50.158Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-640"],"updated_at":"2026-11-02T14:20:06.925367Z"}],"euvd":[{"id":"EUVD-2026-87942","description":"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.","status":"published","published":"2026-09-27T13:09:54Z","modified":"2026-10-06T13:36:50Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:27:37.923108Z"}],"ghsa":[{"id":"GHSA-753f-ggfx-2h8w","title":"Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 build administrator password...","description":"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.","status":"published","published":"2026-09-27T15:31:07Z","modified":"2026-09-27T15:31:08Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-640"],"updated_at":"2026-11-02T15:12:30.689958Z"}],"nvd":[{"id":"CVE-2026-100870","description":"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.","status":"published","published":"2026-09-27T13:16:38.24Z","modified":"2026-09-30T16:17:04.213Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-640"],"updated_at":"2026-11-02T14:12:52.081323Z"}],"osv":[{"id":"CVE-2026-100870","title":"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","description":"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.","status":"published","published":"2026-09-27T13:09:54.715Z","modified":"2026-10-28T02:30:37.647736977Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-640"],"updated_at":"2026-11-02T15:44:53.83521Z"}]}}