CVE-2026-41232 (GCVE-0-2026-41232)
Vulnerability from cvelistv5
Published
2026-04-23 03:54
Modified
2026-04-23 14:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-863 - Incorrect Authorization
Summary
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.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-41232",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-23T14:49:29.020053Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-23T14:50:19.516Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"references": [
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"tags": [
"exploit"
],
"url": "https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6"
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"title": "CISA ADP Vulnrichment"
}
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"cna": {
"affected": [
{
"product": "froxlor",
"vendor": "froxlor",
"versions": [
{
"status": "affected",
"version": "\u003c 2.3.6"
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"descriptions": [
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"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\u0027s `sender_login_maps` then authorizes the attacker to send emails as those addresses. Version 2.3.6 fixes the issue."
}
],
"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"
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],
"problemTypes": [
{
"descriptions": [
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"description": "CWE-863: Incorrect Authorization",
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"providerMetadata": {
"dateUpdated": "2026-04-23T03:54:55.765Z",
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"shortName": "GitHub_M"
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"references": [
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"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"
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{
"name": "https://github.com/froxlor/froxlor/commit/77d04badf549d5f8429828f0fbc69bc37a35e07a",
"tags": [
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"url": "https://github.com/froxlor/froxlor/commit/77d04badf549d5f8429828f0fbc69bc37a35e07a"
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"tags": [
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"url": "https://github.com/froxlor/froxlor/releases/tag/2.3.6"
}
],
"source": {
"advisory": "GHSA-vmjj-qr7v-pxm6",
"discovery": "UNKNOWN"
},
"title": "Froxlor has an Email Sender Alias Domain Ownership Bypass via Wrong Array Index that Allows Cross-Customer Email Spoofing"
}
},
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"datePublished": "2026-04-23T03:54:55.765Z",
"dateReserved": "2026-04-18T03:47:03.134Z",
"dateUpdated": "2026-04-23T14:50:19.516Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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