CVE-2025-12451 MEDIUM

CVE-2025-12451: Easy SVG Support <= 4.0 - Authenticated (Author+) Stored Cross-Site Scripting via SVG File Upload

Vendor Benjamin_Zekavica
Product Easy SVG Support
Weakness CWE-79 · XSS
Published February 19, 2026
Last update April 8, 2026

CVSS base score

4.4/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Easy SVG Support plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG file uploads in all versions up to, and including, 4.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.

Explanation of Vulnerability in Simple Terms

02Summary

Easy SVG Support versions 4.0 and earlier contain a cross-site scripting vulnerability in how SVG content is processed. An attacker with high-level site privileges can inject malicious scripts that execute in other users' browsers when they view affected pages. The vulnerability requires specific conditions to exploit and has limited impact scope.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers when they view SVG content.

Potential impact on your site

04Site Impact

Administrators with malicious intent can compromise other users' sessions or steal their data via injected scripts.

Conditions required to exploit

05Prerequisites

Attacker must have high-level site privileges (administrator or equivalent role).

Key dates

06Disclosure timeline

February 19, 2026 CVE published
April 8, 2026 Record updated