{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-41232", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-18T03:47:03.134Z", "datePublished": "2026-04-23T03:54:55.765Z", "dateUpdated": "2026-04-23T14:50:19.516Z"}, "containers": {"cna": {"title": "Froxlor has an Email Sender Alias Domain Ownership Bypass via Wrong Array Index that Allows Cross-Customer Email Spoofing", "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6"}, {"name": "https://github.com/froxlor/froxlor/commit/77d04badf549d5f8429828f0fbc69bc37a35e07a", "tags": ["x_refsource_MISC"], "url": "https://github.com/froxlor/froxlor/commit/77d04badf549d5f8429828f0fbc69bc37a35e07a"}, {"name": "https://github.com/froxlor/froxlor/releases/tag/2.3.6", "tags": ["x_refsource_MISC"], "url": "https://github.com/froxlor/froxlor/releases/tag/2.3.6"}], "affected": [{"vendor": "froxlor", "product": "froxlor", "versions": [{"version": "< 2.3.6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-04-23T03:54:55.765Z"}, "descriptions": [{"lang": "en", "value": "Froxlor is open source server administration software. Prior to version 2.3.6, in `EmailSender::add()`, the domain ownership validation for full email sender aliases uses the wrong array index when splitting the email address, passing the local part instead of the domain to `validateLocalDomainOwnership()`. This causes the ownership check to always pass for non-existent \"domains,\" allowing any authenticated customer to add sender aliases for email addresses on domains belonging to other customers. Postfix's `sender_login_maps` then authorizes the attacker to send emails as those addresses. Version 2.3.6 fixes the issue."}], "source": {"advisory": "GHSA-vmjj-qr7v-pxm6", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-23T14:49:29.020053Z", "id": "CVE-2026-41232", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-23T14:50:19.516Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-41232", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-18T03:47:03.134Z", "datePublished": "2026-04-23T03:54:55.765Z", "dateUpdated": "2026-04-23T14:50:19.516Z"}, "containers": {"cna": {"title": "Froxlor has an Email Sender Alias Domain Ownership Bypass via Wrong Array Index that Allows Cross-Customer Email Spoofing", "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6"}, {"name": "https://github.com/froxlor/froxlor/commit/77d04badf549d5f8429828f0fbc69bc37a35e07a", "tags": ["x_refsource_MISC"], "url": "https://github.com/froxlor/froxlor/commit/77d04badf549d5f8429828f0fbc69bc37a35e07a"}, {"name": "https://github.com/froxlor/froxlor/releases/tag/2.3.6", "tags": ["x_refsource_MISC"], "url": "https://github.com/froxlor/froxlor/releases/tag/2.3.6"}], "affected": [{"vendor": "froxlor", "product": "froxlor", "versions": [{"version": "< 2.3.6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-04-23T03:54:55.765Z"}, "descriptions": [{"lang": "en", "value": "Froxlor is open source server administration software. Prior to version 2.3.6, in `EmailSender::add()`, the domain ownership validation for full email sender aliases uses the wrong array index when splitting the email address, passing the local part instead of the domain to `validateLocalDomainOwnership()`. This causes the ownership check to always pass for non-existent \"domains,\" allowing any authenticated customer to add sender aliases for email addresses on domains belonging to other customers. Postfix's `sender_login_maps` then authorizes the attacker to send emails as those addresses. Version 2.3.6 fixes the issue."}], "source": {"advisory": "GHSA-vmjj-qr7v-pxm6", "discovery": "UNKNOWN"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-41232", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-23T14:49:29.020053Z"}}}], "references": [{"url": "https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-23T14:49:44.971Z"}}]}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:*", "matchCriteriaId": "9A9C896A-1305-4134-850E-4B44962A6C0A", "versionEndExcluding": "2.3.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Froxlor is open source server administration software. Prior to version 2.3.6, in `EmailSender::add()`, the domain ownership validation for full email sender aliases uses the wrong array index when splitting the email address, passing the local part instead of the domain to `validateLocalDomainOwnership()`. This causes the ownership check to always pass for non-existent \"domains,\" allowing any authenticated customer to add sender aliases for email addresses on domains belonging to other customers. Postfix's `sender_login_maps` then authorizes the attacker to send emails as those addresses. Version 2.3.6 fixes the issue."}], "id": "CVE-2026-41232", "lastModified": "2026-04-27T17:02:02.877", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 1.4, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-04-23T05:16:05.333", "references": [{"source": "[email protected]", "tags": ["Patch"], "url": "https://github.com/froxlor/froxlor/commit/77d04badf549d5f8429828f0fbc69bc37a35e07a"}, {"source": "[email protected]", "tags": ["Release Notes"], "url": "https://github.com/froxlor/froxlor/releases/tag/2.3.6"}, {"source": "[email protected]", "tags": ["Exploit", "Vendor Advisory", "Mitigation"], "url": "https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory", "Mitigation"], "url": "https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "[email protected]", "type": "Secondary"}]}

{}