Description
The ProSolution WP Client plugin for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 2.0.0. This is due to an array validation mismatch where only the first file in the upload array undergoes extension and MIME type validation, while all files are processed and uploaded to a web-accessible directory. This makes it possible for unauthenticated attackers to upload malicious PHP files and achieve remote code execution by sending a valid first file followed by a malicious file.
Published: 2026-05-20
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 23 Jun 2026 01:45:00 +0000

Type Values Removed Values Added
References

Wed, 20 May 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 20 May 2026 04:15:00 +0000

Type Values Removed Values Added
First Time appeared Prosolution
Prosolution prosolution Wp Client
Wordpress
Wordpress wordpress
Vendors & Products Prosolution
Prosolution prosolution Wp Client
Wordpress
Wordpress wordpress

Wed, 20 May 2026 02:15:00 +0000

Type Values Removed Values Added
Description The ProSolution WP Client plugin for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 2.0.0. This is due to an array validation mismatch where only the first file in the upload array undergoes extension and MIME type validation, while all files are processed and uploaded to a web-accessible directory. This makes it possible for unauthenticated attackers to upload malicious PHP files and achieve remote code execution by sending a valid first file followed by a malicious file.
Title ProSolution WP Client <= 2.0.0 - Unauthenticated Arbitrary File Upload via 'files'
Weaknesses CWE-434
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Prosolution Prosolution Wp Client
Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-06-23T00:48:32.050Z

Reserved: 2026-04-17T23:02:07.358Z

Link: CVE-2026-6555

cve-icon Vulnrichment

Updated: 2026-05-20T13:15:37.290Z

cve-icon NVD

Status : Deferred

Published: 2026-05-20T02:16:38.930

Modified: 2026-06-17T11:00:58.270

Link: CVE-2026-6555

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-20T04:00:11Z

Weaknesses