The Scoreboard for HTML5 Games Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'scoreboard' shortcode in all versions up to, and including, 1.2. The shortcode function sfhg_shortcode() allows arbitrary HTML attributes to be added to the rendered <iframe> element, with only a small blacklist of four attribute names (same_height_as, onload, onpageshow, onclick) being blocked. While the attribute names are passed through esc_html() and values through esc_attr(), this does not prevent injection of JavaScript event handler attributes like onfocus, onmouseover, onmouseenter, etc., because these attribute names and simple JavaScript payloads contain no characters that would be modified by these escaping functions. The shortcode text is stored in post_content and is only expanded to HTML at render time, after WordPress's kses filtering has already been applied to the raw post content. 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 Scoreboard for HTML5 Games Lite WordPress plugin contains a Stored Cross-Site Scripting vulnerability in the 'scoreboard' shortcode that allows attackers to inject malicious JavaScript through unfiltered HTML attributes. The vulnerability affects all versions up to 1.2 and can be exploited by adding event handler attributes to the iframe element.
تحتوي إضافة Scoreboard for HTML5 Games Lite على ثغرة XSS مخزنة في دالة sfhg_shortcode() التي تسمح بإضافة سمات HTML عشوائية إلى عنصر iframe. قائمة الحظر الضعيفة التي تحتوي على أربع أسماء سمات فقط لا تمنع حقن معالجات أحداث JavaScript مثل onfocus و onmouseover. يمكن للمهاجمين استغلال هذه الثغرة لتنفيذ رمز JavaScript ضار عند عرض الصفحة.
A Stored XSS vulnerability exists in the Scoreboard for HTML5 Games Lite WordPress plugin affecting versions up to 1.2, allowing injection of malicious JavaScript through shortcode attributes. Attackers can bypass the weak blacklist filter by using alternative event handlers like onfocus and onmouseover.
Update the Scoreboard for HTML5 Games Lite plugin to version 1.3 or later immediately. Remove the plugin if updates are unavailable. Implement Content Security Policy headers to mitigate XSS attacks. Use WordPress security plugins to monitor and filter shortcode usage.
قم بتحديث إضافة Scoreboard for HTML5 Games Lite إلى الإصدار 1.3 أو أحدث فوراً. قم بإزالة الإضافة إذا لم تتوفر تحديثات. طبق رؤوس سياسة أمان المحتوى لتخفيف هجمات XSS. استخدم إضافات أمان WordPress لمراقبة وتصفية استخدام Shortcode.