{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-100870", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-27T00:20:54.408Z", "datePublished": "2026-09-27T13:09:54.715Z", "dateUpdated": "2026-09-27T13:09:54.715Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-27T13:09:54.715Z"}, "datePublic": "2026-09-02T00:00:00.000Z", "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. Attackers can request password resets for known administrator email addresses with forged Host headers to intercept valid reset tokens and take over administrator accounts."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Weak Password Recovery Mechanism for Forgotten Password", "cweId": "CWE-640", "type": "CWE"}]}], "affected": [{"vendor": "Sylius", "product": "Sylius", "collectionURL": "https://packagist.org", "packageName": "sylius/sylius", "packageURL": "pkg:composer/sylius/sylius", "defaultStatus": "unaffected", "versions": [{"version": "1.12.0", "status": "affected", "versionType": "semver", "lessThan": "1.12.25"}, {"version": "1.13.0", "status": "affected", "versionType": "semver", "lessThan": "1.13.17"}, {"version": "1.14.0", "status": "affected", "versionType": "semver", "lessThan": "1.14.20"}, {"version": "2.0.0", "status": "affected", "versionType": "semver", "lessThan": "2.1.16"}, {"version": "2.2.0", "status": "affected", "versionType": "semver", "lessThan": "2.2.9"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.12.0", "versionEndExcluding": "1.12.25"}, {"vulnerable": true, "criteria": "cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.13.0", "versionEndExcluding": "1.13.17"}, {"vulnerable": true, "criteria": "cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.14.0", "versionEndExcluding": "1.14.20"}, {"vulnerable": true, "criteria": "cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.0.0", "versionEndExcluding": "2.1.16"}, {"vulnerable": true, "criteria": "cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.2.0", "versionEndExcluding": "2.2.9"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "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", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/Sylius/Sylius/security/advisories/GHSA-77w3-2367-7xvq", "name": "GitHub Security Advisory (GHSA-77w3-2367-7xvq)", "tags": ["vendor-advisory"]}, {"url": "https://github.com/Sylius/Sylius/pull/19215", "tags": ["patch", "issue-tracking"]}, {"url": "https://github.com/Sylius/Sylius/commit/1255d75b20d3d88a5e5c8d46791504134c838480", "tags": ["patch"]}, {"url": "https://github.com/Sylius/Sylius/releases/tag/v2.2.9", "tags": ["release-notes"], "name": "Sylius v2.2.9 Release Notes"}, {"url": "https://github.com/Sylius/Sylius", "tags": ["product"]}, {"name": "VulnCheck Advisory: 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"], "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"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{"affected": [{"affectedData": [{"collectionURL": "https://packagist.org", "defaultStatus": "unaffected", "packageName": "sylius/sylius", "packageURL": "pkg:composer/sylius/sylius", "product": "Sylius", "vendor": "Sylius", "versions": [{"lessThan": "1.12.25", "status": "affected", "version": "1.12.0", "versionType": "semver"}, {"lessThan": "1.13.17", "status": "affected", "version": "1.13.0", "versionType": "semver"}, {"lessThan": "1.14.20", "status": "affected", "version": "1.14.0", "versionType": "semver"}, {"lessThan": "2.1.16", "status": "affected", "version": "2.0.0", "versionType": "semver"}, {"lessThan": "2.2.9", "status": "affected", "version": "2.2.0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "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. Attackers can request password resets for known administrator email addresses with forged Host headers to intercept valid reset tokens and take over administrator accounts."}], "id": "CVE-2026-100870", "lastModified": "2026-09-27T13:16:38.240", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-09-27T13:16:38.240", "references": [{"source": "[email protected]", "url": "https://github.com/Sylius/Sylius"}, {"source": "[email protected]", "url": "https://github.com/Sylius/Sylius/commit/1255d75b20d3d88a5e5c8d46791504134c838480"}, {"source": "[email protected]", "url": "https://github.com/Sylius/Sylius/pull/19215"}, {"source": "[email protected]", "url": "https://github.com/Sylius/Sylius/releases/tag/v2.2.9"}, {"source": "[email protected]", "url": "https://github.com/Sylius/Sylius/security/advisories/GHSA-77w3-2367-7xvq"}, {"source": "[email protected]", "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"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-640"}], "source": "[email protected]", "type": "Primary"}]}

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