oxilab Image Hover Effects Ultimate Visual Composer Plugin Image Upload Rendering inc/Style22.php default_render cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in oxilab Image Hover Effects Ultimate Visual Composer Plugin up to 3.1.1. Affected by this issue is the function Style22::register_child/Style22::default_render of the file inc/Style22.php of the component Image Upload Rendering. Executing a manipulation of the argument flip-box-image-upload-url-01-alt can lead to cross site scripting. This vulnerability appears as CVE-2026-109973. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in oxilab Image Hover Effects Ultimate Visual Composer Plugin up to 3.1.1 and classified as problematic. This vulnerability affects the function Style22::register_child/Style22::default_render of the file inc/Style22.php of the component Image Upload Rendering. The manipulation of the argument flip-box-image-upload-url-01-alt with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes:

The Image Hover Effects Ultimate Visual Composer (Flipbox - Awesomes Flip Boxes Image Overlay) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'flip-box-image-upload-url-01-alt' parameter in versions up to, and including, 3.1.1. This is due to the plugin saving the image-alt field through sanitize_text_field() in Inc/Style22::register_child() (and Inc/Style18, 19, 20, 25, 29) — which preserves the double-quote character — and then concatenating the stored value into a double-quoted HTML attribute in Public_Render/Style22::default_render() (and the corresponding Style18/19/20/25/29 renderers) with no esc_attr() escaping. This makes it possible for authenticated attackers, with contributor-level access and above (when an administrator has delegated the plugin's 'Who can edit' capability via the plugin Settings page, or on multisite installations where even administrators lack unfiltered_html), to inject arbitrary web scripts in pages that will execute whenever a user accesses any page containing an affected [oxilab_flip_box] shortcode or block.

The advisory is available at wordfence.com. This vulnerability was named CVE-2026-109973 since 10/13/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

By approaching the search of inurl:inc/Style22.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• oxilab

Name

• Image Hover Effects Ultimate Visual Composer Plugin

Version

• 3.1.0
• 3.1.1

CPE 2.3info

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CPE 2.2info

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