CVE-2026-103768

Status: DeferredCritical (9.8)—

Severity9.8Critical · CVSS 3.1

Exploitation probability0.58 %higher than 47% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

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

Base score: 9.8
Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.58 %
Percentile among all scored CVEs: 47
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1190 Exploit Public-Facing Applicationinitial access90 %
Primary impactT1505.003 Web Shellpersistence80 %
Secondary impactT1059 Command and Scripting Interpreterexecution60 %

Vector AV:N/PR:N/UI:N y CWE-434: subida de archivos sin autenticación ni validación de tipo que puede dar ejecución remota de código (RCE).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Privileged Account Management Disable or Remove Feature or Program Vulnerability Scanning User Account Management Restrict Web-Based Content Network Segmentation

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Elex — Helpdesk AND Customer Ticketing System^AI

CWEs

CWE-434

References

Show 3 references

Raw JSON (NVD)

Show

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          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-10-16T14:55:35.274723Z"
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        {
          "vendor": "elextensions",
          "product": "ELEX WordPress HelpDesk & Customer Ticketing System",
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    {
      "url": "https://plugins.trac.wordpress.org/changeset/3733037/elex-helpdesk-customer-support-ticket-system/trunk/includes/Mailbox.php",
      "source": "security@wordfence.com"
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    {
      "url": "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",
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    }
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  "lastModified": "2026-10-16T15:17:02.553",
  "sourceIdentifier": "security@wordfence.com"
}