WP Blockade <= 0.9.14 - Reflected Cross-Site Scripting via 'shortcode' Parameter
The WP Blockade plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'shortcode' parameter in all versions up to and including 0.9.14. This is due to insufficient input sanitization and output escaping in the render_shortcode_preview() function. The function receives user input from $GET['shortcode'], passes it through stripslashes() without any sanitization, and then outputs it directly via echo do_shortcode($shortcode) on line 393. When the input is not a valid WordPress shortcode (e.g., an HTML tag with JavaScript event handlers), do_shortcode() returns it unchanged, and it is reflected into the page without escaping. The endpoint is registered via admin_post (not admin_post_nopriv_), meaning it requires the user to be logged in with at minimum a Subscriber-level account. There is no nonce verification or additional capability check. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute if they can successfully trick a user into performing an action such as clicking a link.
Betroffene Software
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| Plattform | Paket | Anfällige Versionen | Behoben in |
|---|---|---|---|
| WordPress-Plugin | WP Blockade – Visual Page Builder | <= 0.9.14 | keine Korrektur |
Verweise
- CVSS-Vektor
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Schwäche (CWE)
CWE-79- Plattform
- WordPress
- Paket
WP Blockade – Visual Page Builder- Veröffentlicht
- 21.05.2026
- Aktualisiert
- 11.10.2026 10:22
Quellen und Lizenzen
Wordfence Intelligence - 66950509-ce2a-42fe-a8b2-2a92a1b573c3 - Wordfence Intelligence
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Schwachstellenhistorie: WP Blockade – Visual Page Builder
Alle veröffentlichten Schwachstellen dieses Pakets (WordPress-Plugin), neueste zuerst. Zeigt, ob es ein einmaliger Ausrutscher ist oder ein Paket, das man im Auge behalten muss.
- Einträge insgesamt
- 2
- Erste → letzte
- 04.2026 05.2026
- Ohne Fix
- 2
- In Angriffen ausgenutzt
- 0
Verteilung nach Schweregrad
- Mittel 2
Veröffentlichungen pro Jahr
- 2026: 2
-
WP Blockade <= 0.9.14 - Reflected Cross-Site Scripting via 'shortcode' Parameter dieser Eintrag
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