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CVE-2026-41232

CVE-2026-41232 · Froxlor has an Email Sender Alias Domain Ownership Bypass via Wrong Array Index that Allows Cross-Customer Email Spoofing

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 5.0 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: php

Affected products and versions

  • froxlor

    Versions
    • < 2.3.6: Affected

    No fix published

  • froxlor/froxlor Packagist

    Versions
    • 0.10.0
    • 0.10.0-rc1
    • 0.10.0-rc2
    • 0.10.1
    • 0.10.10
    • 0.10.11
    • 0.10.12
    • 0.10.13
    • 0.10.14
    • 0.10.15
    • 0.10.16
    • 0.10.17
    • 0.10.18
    • 0.10.19
    • 0.10.2
    • 0.10.20
    • 0.10.21
    • 0.10.22
    • 0.10.23
    • 0.10.23.1
    • 0.10.24
    • 0.10.25
    • 0.10.26
    • 0.10.27
    • 0.10.28
    • 0.10.29
    • 0.10.29.1
    • 0.10.3
    • 0.10.30
    • 0.10.31
    • 0.10.32
    • 0.10.33
    • 0.10.34
    • 0.10.34.1
    • 0.10.35
    • 0.10.35.1
    • 0.10.36
    • 0.10.37
    • 0.10.38
    • 0.10.38.1
    • 0.10.38.2
    • 0.10.38.3
    • 0.10.4
    • 0.10.5
    • 0.10.6
    • 0.10.7
    • 0.10.8
    • 0.10.9
    • 2.0.0
    • 2.0.1
    • 2.0.10
    • 2.0.11
    • 2.0.12
    • 2.0.13
    • 2.0.14
    • 2.0.15
    • 2.0.16
    • 2.0.17
    • 2.0.18
    • 2.0.19
    • 2.0.2
    • 2.0.20
    • 2.0.21
    • 2.0.22
    • 2.0.23
    • 2.0.24
    • 2.0.3
    • 2.0.4
    • 2.0.5
    • 2.0.6
    • 2.0.7
    • 2.0.8
    • 2.0.9
    • 2.1.0
    • 2.1.0-beta1
    • 2.1.0-beta2
    • 2.1.0-rc1
    • 2.1.0-rc2
    • 2.1.0-rc3
    • 2.1.1
    • 2.1.2
    • 2.1.3
    • 2.1.4
    • 2.1.5
    • 2.1.6
    • 2.1.7
    • 2.1.8
    • 2.1.9
    • 2.2.0
    • 2.2.0-rc1
    • 2.2.0-rc2
    • 2.2.0-rc3
    • 2.2.1
    • 2.2.2
    • 2.2.3
    • 2.2.4
    • 2.2.5
    • 2.2.6
    • 2.2.7
    • 2.2.8
    • 2.3.0
    • 2.3.0-rc1
    • 2.3.1
    • 2.3.2
    • 2.3.3
    • 2.3.4
    • 2.3.5
    Affected ranges
    • ECOSYSTEM: < 2.3.6

    Update to 2.3.6

Original sources

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