Reported vulnerability

Slider Hero with Video Background, Animation <= 9.1.7 - Authenticated (Administrator+) SQL Injection via 'description' Slide Field (Second-Order via Duplicate)

Published 15 Aug 2026

Updated 16 Aug 2026

CVE-2026-17582

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Wordfence advisory

medium · CVSS 4.9

The Slider Hero plugin for WordPress is vulnerable to second-order SQL Injection in versions up to, and including, 9.1.7 via the qcld_sliderhero_duplicate() function. Slide data (description, title, btn, btn2, image_link, custom, etc.) is stored safely via $wpdb->update() with %s placeholders in the qchero_save_image AJAX handler, but when an administrator triggers the 'heroduplicateslider' task, qcld_sliderhero_duplicate() re-reads every slide column and concatenates the raw values directly into an INSERT VALUES tuple that is then executed with $wpdb->query() — with no $wpdb->prepare(), esc_sql(), or _real_escape_string in between. This makes it possible for authenticated attackers, with administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

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

Slider Hero with Video Background, Animation

Software: plugin · slider-hero
Affected versions: Start version unspecified, through 9.1.7
Fix availability: Fix available
Fixed versions: 9.1.8

Recommended action

Update to version 9.1.8, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/c2b36621-3322-4631-b693-629c5084708b?source=api-prod

Data sources and licences

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CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

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Source: Wordfence

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Questions about this vulnerability

Which versions of Slider Hero with Video Background, Animation are affected?

Wordfence lists these affected versions: Start version unspecified, through 9.1.7. Use the version checker above to compare your installed release with this report.

Is a fix available for Slider Hero with Video Background, Animation?

Wordfence reports a fix for this issue in Slider Hero with Video Background, Animation. It lists these fixed versions: 9.1.8. Back up your website and test the recommended update before applying it to your live site.

Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

These reports cover at least one of the same plugins, themes or WordPress core. Check each report’s affected versions separately.

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