Medium severity · published Oct 28, 2026
CVE-2026-103370
Awesome Support <= 6.4.1 - Authenticated (Custom+) Stored Cross-Site Scripting via Ticket Attachment MIME Confusion
New
6.4
CVSS
–
EPSS
No
On KEV
Description
The Awesome Support – WordPress HelpDesk & Support Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wpas_files' parameter in all versions up to, and including, 6.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is only exploitable when the "Enable drag-n-drop uploader for ticket form" setting is enabled, as it is disabled by default.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Awesome Support – WordPress HelpDesk & Support Plugin · awesomesupport
through 6.4.1 · source: vendor
Affected product
AS
Awesome Support – WordPress HelpDesk & Support Plugin
awesomesupport
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-103370
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-103370
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/01515533-197c-41c0-9c2b-6f0317cdc375?source=cve
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/awesome-support/tags/6.4.1/includes/file-uploader/class-file-uploader.php#L669
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/awesome-support/tags/6.4.1/includes/file-uploader/class-file-uploader.php#L2032
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/awesome-support/tags/6.4.1/includes/file-uploader/class-file-uploader.php#L2195
wordpress.org
https://wordpress.org/plugins/awesome-support/
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3749553/awesome-support/trunk/includes/file-uploader/class-file-uploader.php
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