Filestack

Filestack has one disclosed vulnerability in the WordSec catalog, all reported in 2026; it remains unpatched as of September 2026. Their average CVSS score is 6.4, and the most serious one scores 6.4 out of 10.

The most common weakness is Cross-Site Scripting, behind 1 of the records (100%).

The one issue recorded for Filestack has no published fix yet, which makes virtual patching the only reliable mitigation. The oldest unresolved one dates back to 2026.

All of these findings were reported by Gilang - DJ. Filestack is installed on roughly 10 WordPress sites, so each unpatched flaw has a wide blast radius. The current release is tested up to WordPress 4.7.35.

Strategic Overview

Avg CVSSMedium

6.4/ 10

Patch Coverage0%

Open

Fixed

Get automatic notifications for all Filestack vulnerabilities before they are exploited.

Most severe open issueCVSS 6.4CVE-2025-13959

Filestack <= 2.0.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

Read the full analysis

Vulnerability Records

1 records


2026-02-17 16:17	Filestack <= 2.0.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes Filestack <= 2.0.8	`CVE-2025-13959`	6.4 Medium	Gilang - DJ	No

Showing 1–1 of 1 reports

Plugin Profile

Latestv2.0.8

Filestack

Author

shanaver

4.0(3)

80/100

Last Updated

2016-11-21 (10y ago)

Active Installs

10+

Downloads

3,887

Requires WP

3.0.1+

Requires PHP

Tested up to

WP 4.7.35

Created

2013-12-02 (13y ago)

Use Filestack to upload files directly from Facebook, Instagram, Google Images and more for your WordPress site, without ever leaving WordPress.

View on WordPress.org