mxp XX2WP Integration Tools Plugin up to 1.9.9 on WordPress Shortcode mxp_fb2wp_display_embed post_id cross site scripting

Summaryinfo

A vulnerability was found in mxp XX2WP Integration Tools Plugin up to 1.9.9 on WordPress. It has been rated as problematic. This affects the function mxp_fb2wp_display_embed of the component Shortcode Handler. The manipulation of the argument post_id leads to cross site scripting. This vulnerability is traded as CVE-2025-11857. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in mxp XX2WP Integration Tools Plugin up to 1.9.9 on WordPress. This issue affects the function mxp_fb2wp_display_embed of the component Shortcode Handler. The manipulation of the argument post_id with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

The XX2WP Integration Tools plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'mxp_fb2wp_display_embed' shortcode in all versions up to, and including, 1.9.9. This is due to the plugin not properly sanitizing user input and output of the 'post_id' parameter. 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 shared by Muhammad Yudha. It is possible to read the advisory at wordfence.com. The identification of this vulnerability is CVE-2025-11857 since 10/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 1.9.9 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-34966). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• mxp

Name

• XX2WP Integration Tools Plugin

Version

• 1.9.0
• 1.9.1
• 1.9.2
• 1.9.3
• 1.9.4
• 1.9.5
• 1.9.6
• 1.9.7
• 1.9.8
• 1.9.9

CPE 2.3info

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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