CVE-2026-16098

The ProSolution WP Client plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.0.10 via the proSol_handleFileUpload function. This is due to missing validation of the attacker-controlled Content-Disposition header filename, which overrides the allow-listed multipart filename before the file is saved, and a post-save extension check that fails to delete the already-written file. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible. The nonce required to reach the upload handler is publicly exposed via wp_localize_script on any front-end page rendering the job portal shortcode, allowing unauthenticated visitors to obtain a valid nonce and bypass that gating check entirely.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://plugins.trac.wordpress.org/browser/prosolution-wp-client/tags/2.0.6/includes/UploadHandler.php#L1090
https://plugins.trac.wordpress.org/browser/prosolution-wp-client/tags/2.0.6/includes/UploadHandler.php#L1327
https://plugins.trac.wordpress.org/browser/prosolution-wp-client/tags/2.0.6/includes/class-prosolwpclient.php#L254
https://plugins.trac.wordpress.org/browser/prosolution-wp-client/tags/2.0.6/public/class-prosolwpclient-public.php#L1033
https://plugins.trac.wordpress.org/changeset?reponame=&old=3644463%40prosolution-wp-client&new=3644463%40prosolution-wp-client
https://www.wordfence.com/threat-intel/vulnerabilities/id/3c4a7aef-09ec-4d17-87d6-f507d64e0afa?source=cve

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-16 05:16

Updated : 2026-08-20 12:48

NVD link : CVE-2026-16098

Mitre link : CVE-2026-16098

CVE.ORG link : CVE-2026-16098

JSON object : View

Products Affected

No product.

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

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