{"id":"CVE-2026-100870","state":"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.","publishedAt":"2026-09-27T13:09:54.715Z","updatedAt":"2026-10-06T13:36:50.158Z","severity":{"score":8.7,"label":"High","version":"4.0","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","source":"VulnCheck"},"assigner":"VulnCheck","products":["Sylius Sylius"],"affected":[{"vendor":"Sylius","product":"Sylius","packageName":"sylius/sylius","packageURL":"pkg:composer/sylius/sylius","defaultStatus":"unaffected","versions":[{"version":"1.12.0","status":"affected","lessThan":"1.12.25","versionType":"semver"},{"version":"1.13.0","status":"affected","lessThan":"1.13.17","versionType":"semver"},{"version":"1.14.0","status":"affected","lessThan":"1.14.20","versionType":"semver"},{"version":"2.0.0","status":"affected","lessThan":"2.1.16","versionType":"semver"},{"version":"2.2.0","status":"affected","lessThan":"2.2.9","versionType":"semver"}],"collectionURL":"https://packagist.org"}],"references":["https://github.com/Sylius/Sylius/security/advisories/GHSA-77w3-2367-7xvq","https://github.com/Sylius/Sylius/pull/19215","https://github.com/Sylius/Sylius/commit/1255d75b20d3d88a5e5c8d46791504134c838480","https://github.com/Sylius/Sylius/releases/tag/v2.2.9","https://github.com/Sylius/Sylius","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"],"weaknesses":["CWE-640"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/100xxx/CVE-2026-100870.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100870","state":"PUBLISHED","datePublished":"2026-09-27T13:09:54.715Z","dateUpdated":"2026-10-06T13:36:50.158Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-27T00:20:54.408Z"},"containers":{"cna":{"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","descriptions":[{"lang":"en","value":"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. 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