CVE-2026-4076
Stored XSS in Slider Bootstrap Carousel WordPress Plugin
Publication date: 2026-04-22
Last updated on: 2026-04-22
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wp_slider_bootstrap_carousel | slider_bootstrap_carousel | to 1.0.7 (inc) |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The Slider Bootstrap Carousel plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in versions up to and including 1.0.7. This occurs because the plugin does not properly sanitize or escape user-supplied shortcode attributes named 'category' and 'template'. Specifically, the plugin extracts these attributes and directly outputs them into HTML attributes without applying necessary escaping functions, allowing an attacker with Contributor-level access or higher to inject malicious scripts that execute when users view the affected pages.
How can this vulnerability impact me? :
This vulnerability allows authenticated attackers with Contributor-level access or above to inject arbitrary JavaScript code into pages using the vulnerable plugin. When other users access these pages, the injected scripts execute in their browsers, potentially leading to session hijacking, defacement, unauthorized actions, or theft of sensitive information.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should update the Slider Bootstrap Carousel plugin for WordPress to a version later than 1.0.7 where the issue is fixed.
Additionally, restrict Contributor-level and higher user permissions to trusted users only, as the vulnerability requires authenticated users with at least Contributor access to exploit.
If an immediate update is not possible, consider applying input sanitization and output escaping (such as esc_attr()) on the 'category' and 'template' shortcode attributes in the plugin code to prevent script injection.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The vulnerability allows authenticated attackers with Contributor-level access and above to inject arbitrary web scripts via stored cross-site scripting (XSS) in the Slider Bootstrap Carousel plugin for WordPress. This can lead to unauthorized script execution when users access the injected pages.
Such unauthorized script execution can potentially lead to data exposure or manipulation, which may impact compliance with data protection regulations like GDPR or HIPAA that require safeguarding personal and sensitive information against unauthorized access or alteration.
However, the provided information does not explicitly detail the direct impact on compliance with these standards.