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FS Poster <= 8.0.1 — Authenticated (Subscriber+) Remote Code Execution via FFmpeg Path Setting

CVE-2026-10195Published · Updated

Action summary

Affected: ≤8.0.1Update to 8.0.2 or newer

All remediation steps
Severity
High8.8
CVSS
8.8
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:L Privileges required
Low
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-77 Improper Neutralization of Special Elements used in a Command
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed

Am I affected?

FS Poster - WordPress Social media Auto Poster & Scheduler [Facebook, Instagram, Twitter, Pinterest] fs-poster

  1. Affected≤ 8.0.1
  2. Patched in8.0.2

Update to 8.0.2 or newer.

You are affected if you run ≤ 8.0.1. Version 8.0.2 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under FS Poster - WordPress Social media Auto Poster & Scheduler [Facebook, Instagram, Twitter, Pinterest].
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 8.0.2, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch FS Poster - WordPress Social media Auto Poster & Scheduler [Facebook, Instagram, Twitter, Pinterest] to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Sullo.

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.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in FS Poster - WordPress Social media Auto Poster & Scheduler [Facebook, Instagram, Twitter, Pinterest]

All 5
More vulnerabilities in FS Poster - WordPress Social media Auto Poster & Scheduler [Facebook, Instagram, Twitter, Pinterest]
SeverityVulnerabilityCVEPublished
Medium4.3Missing Authorization
≤6.5.8Update to 7.1.8
CVE-2025-30960
Medium6.1Reflected Cross-Site Scripting
≤6.5.8Update to 6.5.9
CVE-2025-30962
High7.7Authenticated (Subscriber+) SQL Injection
≤6.5.8Update to 6.5.9
CVE-2025-26978
Medium4.3Cross-Site Request Forgery
≤6.5.8Update to 6.5.9
CVE-2024-37237

Timeline

  1. CVE published

    Severity high, CVSS 8.8

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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