CVE-2026-8896
Received Received - Intake
Stored XSS in MIR Blocks and Shortcodes WordPress Plugin

Publication date: 2026-06-24

Last updated on: 2026-06-24

Assigner: Wordfence

Description
The MIR blocks and shortcodes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title' attribute (and other attributes such as 'ready_animation_text') of the 'msc_stats' shortcode in versions up to, and including, 1.0.0. This is due to insufficient input sanitization and output escaping on user supplied shortcode attributes inside the msc_stats() rendering function. 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
2026-06-24
Last Modified
2026-06-24
Generated
2026-06-24
AI Q&A
2026-06-24
EPSS Evaluated
N/A
NVD
CVE-2026-8896
EUVD
EUVD-2026-38682
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wp_mir_blocks_and_shortcodes mir_blocks_and_shortcodes to 1.0.0 (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 MIR blocks and shortcodes plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in versions up to and including 1.0.0. This vulnerability arises because the plugin does not properly sanitize or escape user-supplied input in shortcode attributes such as 'title' and 'ready_animation_text' within the 'msc_stats' shortcode.

Authenticated users with contributor-level access or higher can exploit this flaw by injecting malicious scripts into pages via these shortcode attributes. These scripts then execute whenever any user views the affected page.

Impact Analysis

This vulnerability allows an attacker with contributor-level access or above to inject arbitrary web scripts into pages on a WordPress site using the MIR blocks and shortcodes plugin.

The impact includes the potential for attackers to execute malicious scripts in the browsers of users who visit the infected pages, which can lead to theft of sensitive information, session hijacking, or other malicious activities.

The CVSS score of 6.4 (medium severity) reflects the risk posed by this vulnerability, emphasizing that it requires low attack complexity but privileges to exploit.

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