CVE-2026-41232

MEDIUM EPSS 13.8%
Published Apr 23, 20262mo ago · Modified Jun 17, 20262w ago
5.0 CVSS 3.1
Medium
Find Similar
Published Apr 23, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

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 Details

Base Score
5.0
Exploitability
3.1
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
13.8% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-863 Incorrect Authorization Authorization

Affected Products 1

VendorProductVersionRange
froxlorfroxlor* <2.3.6

References 3

  • github.com https://github.com/froxlor/froxlor/commit/77d04badf549d5f8429828f0fbc69bc37a35e07a
    Patch
  • github.com https://github.com/froxlor/froxlor/releases/tag/2.3.6
    Release Notes
  • github.com https://github.com/froxlor/froxlor/security/advisories/GHSA-vmjj-qr7v-pxm6
    ExploitMitigationVendor Advisory

Remediation

  • github.com https://github.com/froxlor/froxlor/commit/77d04badf549d5f8429828f0fbc69bc37a35e07a
    Patch