CVE-2026-14876
Received Received - Intake

Stored XSS in Smart Slider 3 WordPress Plugin

Publication date: 2026-09-30

Last updated on: 2026-09-30

Assigner: Wordfence

Description
The Smart Slider 3 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'data-href' parameter in all versions up to, and including, 3.5.1.38 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.

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Meta Information

Published
2026-09-30
Last Modified
2026-09-30
Generated
2026-09-30
AI Q&A
2026-09-30
EPSS Evaluated
N/A
NVD
CVE-2026-14876
EUVD
EUVD-2026-89667

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
smart_slider smart_slider_3 to 3.5.1.38 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

The Smart Slider 3 WordPress plugin has a stored cross-site scripting (XSS) vulnerability in versions up to 3.5.1.38. The flaw exists in the 'data-href' parameter due to insufficient input sanitization and output escaping. Authenticated attackers with contributor-level access or higher can inject malicious scripts into pages.

Detection Guidance

To detect this vulnerability, inspect WordPress sites using Smart Slider 3 plugin versions up to 3.5.1.38. Check for suspicious scripts in pages or posts, particularly those using the 'data-href' parameter. Review contributor-level user activity logs for unauthorized changes.

Impact Analysis

An attacker could inject scripts that execute when users visit affected pages. This may lead to theft of session cookies, account takeover, or defacement of your WordPress site. Users with contributor access or above pose the greatest risk.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating GDPR's data protection requirements or HIPAA's security rules. Organizations may face fines or penalties if exploited.

Mitigation Strategies

Immediately update the Smart Slider 3 plugin to the latest version. Remove or restrict contributor-level access to untrusted users. Scan WordPress sites for malicious scripts and sanitize any injected content. Monitor for unusual activity.

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