The FS-Poster plugin for WordPress is vulnerable to Remote Code Execution in versions up to and including 8.0.1. This is due to insufficient input sanitization of the FFmpeg path parameter before passing it to the exec() function, combined with missing authorization checks on the REST API endpoints. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary commands on the underlying server.
History

Wed, 02 Sep 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Fs-code
Fs-code fs Poster - Wordpress Social Media Auto Poster & Scheduler [facebook, Instagram, Twitter, Pinterest]
Wordpress
Wordpress wordpress
Vendors & Products Fs-code
Fs-code fs Poster - Wordpress Social Media Auto Poster & Scheduler [facebook, Instagram, Twitter, Pinterest]
Wordpress
Wordpress wordpress

Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Description The FS-Poster plugin for WordPress is vulnerable to Remote Code Execution in versions up to and including 8.0.1. This is due to insufficient input sanitization of the FFmpeg path parameter before passing it to the exec() function, combined with missing authorization checks on the REST API endpoints. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary commands on the underlying server.
Title FS Poster <= 8.0.1 - Authenticated (Subscriber+) Remote Code Execution via FFmpeg Path Setting
Weaknesses CWE-77
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2026-09-01T15:30:56.119Z

Updated: 2026-09-01T17:07:08.276Z

Reserved: 2026-05-31T02:34:59.878Z

Link: CVE-2026-10195

cve-icon Vulnrichment

Updated: 2026-09-01T17:07:02.562Z

cve-icon NVD

Status : Deferred

Published: 2026-09-01T16:16:47.467

Modified: 2026-09-01T20:47:54.130

Link: CVE-2026-10195

cve-icon Redhat

No data.