CVE-2025-62961 MEDIUM

CVE-2025-62961: WordPress Sparkle FSE theme <= 1.0.9 - Broken Access Control vulnerability

Vendor Sparklewpthemes
Product Sparkle FSE
Weakness CWE-862 · Missing authorization
Published December 18, 2025
Last update April 28, 2026

CVSS base score

5.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

What the vulnerability does

01Description

Missing Authorization vulnerability in sparklewpthemes Sparkle FSE sparkle-fse allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Sparkle FSE: from n/a through <= 1.0.9.

Explanation of Vulnerability in Simple Terms

02Summary

Sparkle FSE versions up to 1.0.9 lack proper authorization checks, allowing authenticated users to modify site content and settings they should not have access to. An attacker with a low-privilege account can alter data integrity and availability without elevated permissions. Update to a version newer than 1.0.9 to resolve this issue.

What an attacker can do

03Attacker Capabilities

Modify or delete site content and settings with a low-privilege user account.

Potential impact on your site

04Site Impact

Unauthorized users can alter your site's content, settings, and availability without admin approval.

Conditions required to exploit

05Prerequisites

Attacker must have a valid low-privilege user account on the site.

Key dates

06Disclosure timeline

December 18, 2025 CVE published
April 28, 2026 Record updated