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OpenAdvisories
Medium · 6.4 CVE-2025-13889 EUVD-2025-203014GHSA-8v5j-2957-grcg

Simple Nivo Slider <= 0.5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

Published Dec 12, 2025 · Updated Apr 8, 2026 · Assigned by Wordfence

Description

The Simple Nivo Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' shortcode parameter in all versions up to, and including, 0.5.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

VendorProductAffectedFixed
tmus Simple Nivo Slider ≤ 0.5.6 —

References