CVE-2026-10195
Received Received - Intake

Remote Code Execution in FS-Poster WordPress Plugin

Publication date: 2026-09-01

Last updated on: 2026-09-01

Assigner: Wordfence

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.

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Meta Information

Published
2026-09-01
Last Modified
2026-09-01
Generated
2026-09-01
AI Q&A
2026-09-01
EPSS Evaluated
N/A
NVD
CVE-2026-10195
EUVD
EUVD-2026-69300

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
fs_poster fs_poster to 8.0.1 (inc)
fs-poster fs-poster to 8.0.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

The FS-Poster WordPress plugin up to version 8.0.1 has a Remote Code Execution vulnerability. It fails to properly sanitize the FFmpeg path parameter before using it in the exec() function. Additionally, there are missing authorization checks on REST API endpoints. This allows authenticated attackers with subscriber-level access or higher to run arbitrary commands on the server.

Detection Guidance

Check for the FS-Poster plugin version 8.0.1 or lower in your WordPress installation. Look for unauthorized REST API calls or suspicious exec() function usage in server logs. Inspect subscriber-level accounts for unusual activity.

Impact Analysis

An attacker could exploit this to take full control of your WordPress server. They might steal sensitive data, install malware, deface your site, or use it as a launchpad for further attacks. The impact includes complete system compromise and potential data breaches.

Compliance Impact

This vulnerability could lead to unauthorized access and data exfiltration, violating GDPR and HIPAA requirements for data protection and access controls. Organizations may face fines, legal action, and reputational damage if exploited.

Mitigation Strategies

Update the FS-Poster plugin to version 8.1.1 or later immediately. Remove or disable the plugin if updates are unavailable. Review server logs for signs of exploitation and restrict subscriber-level access to sensitive functions.

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