CVE-2026-103768CWE-434unrestricted-file-upload

CVE-2026-103768

Critical · published October 16, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
46.9
In the wild
Unconfirmed
What it is

The ELEX WordPress HelpDesk & Customer Ticketing System plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 3.3.7 via the initMailPart function. This is due to insufficient file type validation when saving IMAP email attachments. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00578 · 46.9th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-10-16T10:17Z
References (3)
https://plugins.trac.wordpress.org/changeset/3733037/elex-helpdesk-customer-support-ticket-system/trunk/includes/Mailbox.php · [email protected]https://plugins.trac.wordpress.org/changeset?reponame=&new=3733037%40elex-helpdesk-customer-support-ticket-system%2Ftags%2F3.3.8&old=3538729%40elex-helpdesk-customer-support-ticket-system%2Ftags%2F3.3.7 · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/8e8129b6-cc1d-4fdc-81a7-b0c8c3d1c308?source=cve · [email protected]
EPSS history
Timeline
  • 17 OCT 03:27Z
    EPSS moved — → 1%
    epss
  • 16 OCT 05:30Z
    ELEX WordPress HelpDesk & Customer Ticketing System <= 3.3.7 - Unauthenticated Arbitrary File Upload via IMAP Email Attachment
    cvelistv5
  • 16 OCT 05:30Z
    ELEX WordPress HelpDesk & Customer Ticketing System <= 3.3.7 - Unauthenticated Arbitrary File Upload via IMAP Email Attachment
    cvelistv5