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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
0.3%
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?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
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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