paradigmatools Avalon23 Products Filter for WooCommerce Plugin up to 1.1.6 on WordPress Shortcode draw_html_item cross site scripting

Summaryinfo

A vulnerability classified as problematic was found in paradigmatools Avalon23 Products Filter for WooCommerce Plugin up to 1.1.6 on WordPress. The affected element is the function AVALON23_HELPER::draw_html_item of the component Shortcode Handler. The manipulation results in cross site scripting. This vulnerability is known as CVE-2026-8865. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in paradigmatools Avalon23 Products Filter for WooCommerce Plugin up to 1.1.6 on WordPress. Affected is the function AVALON23_HELPER::draw_html_item of the component Shortcode Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:

The Avalon23 Products Filter for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'avalon23_qr' shortcode in all versions up to, and including, 1.1.6. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes (notably 'title' and 'fixed_link') which are concatenated directly into single-quoted HTML attributes by the AVALON23_HELPER::draw_html_item() helper without esc_attr() or any other encoding. 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.

The weakness was published by Gilang Asra Bilhadi. The advisory is available at wordfence.com. This vulnerability is traded as CVE-2026-8865 since 05/18/2026. The exploitability is told to be easy. It is possible to launch the attack 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.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• E-Commerce Management Software

Vendor

• paradigmatools

Name

• Avalon23 Products Filter for WooCommerce Plugin

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3
• 1.1.4
• 1.1.5
• 1.1.6

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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