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Critical severity · published Oct 16, 2026
CVE-2026-103768
ELEX WordPress HelpDesk & Customer Ticketing System <= 3.3.7 - Unauthenticated Arbitrary File Upload via IMAP Email Attachment
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EW
ELEX WordPress HelpDesk & Customer Ticketing System · elextensions
through 3.3.7 · source: vendor
Affected product
EW
ELEX WordPress HelpDesk & Customer Ticketing System
elextensions
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-103768
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-103768
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3733037/elex-helpdesk-customer-support-ticket-system/trunk/includes/Mailbox.php
plugins.trac.wordpress.org
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
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/8e8129b6-cc1d-4fdc-81a7-b0c8c3d1c308?source=cve
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