Sparkle FSE

Sparkle FSE has one disclosed vulnerability in the WordSec catalog, all reported in 2025; it remains unpatched as of September 2026. Their average CVSS score is 4.3, and the most serious one scores 4.3 out of 10.

The most common weakness is Missing Authorization, behind 1 of the records (100%).

The one issue recorded for Sparkle FSE has no published fix yet, which makes virtual patching the only reliable mitigation. The oldest unresolved one dates back to 2025.

All of these findings were reported by Denver Jackson. Sparkle FSE is installed on roughly 700 WordPress sites, so each unpatched flaw has a wide blast radius.

Strategic Overview

Avg CVSSMedium

4.3/ 10

Patch Coverage0%

Open

Fixed

Get automatic notifications for all Sparkle FSE vulnerabilities before they are exploited.

Most severe open issueCVSS 4.3CVE-2025-62961

Sparkle FSE <= 1.0.9 - Missing Authorization

Read the full analysis

Vulnerability Records

1 records


2025-10-16 00:00	Sparkle FSE <= 1.0.9 - Missing Authorization Sparkle FSE <= 1.0.9	`CVE-2025-62961`	4.3 Medium	Denver Jackson	No

Showing 1–1 of 1 reports

Latestv1.1.1

Sparkle FSE

Author

Sparkle WP

5.0(3)

100/100

Last Updated

2025-11-19 (10mo ago)

Active Installs

700+

Downloads

26,915

Requires WP

5.9+

Requires PHP

5.6+

Created

2022-10-20 (4y ago)

Sparkle FSE is a modern block-based theme where you can build your own unique-looking website by using WordPress Blocks Editor. Sparkle FSE is a multipurpose block-based free WordPress theme, the theme is built in accordance with Full Site Editing features introduced in WordPress 5.9, which means that all the aspects including colors, typography, and the layout of every single page on your site can be customized to suit your need.