FKIE_CVE-2026-41232

Vulnerability from fkie_nvd - Published: 2026-04-23 05:16 - Updated: 2026-04-27 17:02
Severity
5.0 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
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
security-advisories@github.comhttps://github.com/froxlor/froxlor/commit/77d04badf549d5f8429828f0fbc69bc37a35e07aPatch
security-advisories@github.comhttps://github.com/froxlor/froxlor/releases/tag/2.3.6Release Notes
security-advisories@github.comhttps://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6Exploit, Vendor Advisory, Mitigation
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6Exploit, Vendor Advisory, Mitigation
Impacted products
Vendor Product Version
froxlor froxlor *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9A9C896A-1305-4134-850E-4B44962A6C0A",
              "versionEndExcluding": "2.3.6",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "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\u0027s `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": "security-advisories@github.com",
        "type": "Secondary"
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  "published": "2026-04-23T05:16:05.333",
  "references": [
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      "tags": [
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      "url": "https://github.com/froxlor/froxlor/commit/77d04badf549d5f8429828f0fbc69bc37a35e07a"
    },
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      "tags": [
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        "Vendor Advisory",
        "Mitigation"
      ],
      "url": "https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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