CVE-2026-3480 | burlingtonbytes WP Blockade Plugin up to 0.9.14 on WordPress Shortcode render_shortcode_preview authorization

VDB-356026 · CVE-2026-3480 · GCVE-0-2026-3480 BURLINGTONBYTES WP BLOCKADE PLUGIN UP TO 0.9.14 ON WORDPRESS SHORTCODE RENDER_SHORTCODE_PREVIEW AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.3 $0-$5k 0.46+ Summaryinfo A vulnerability was found in burlingtonbytes WP Blockade Plugin up to 0.9.14 on WordPress. It has been declared as problematic. Affected by this vulnerability is the function render_shortcode_preview of the component Shortcode Handler. Executing a manipulation can lead to authorization. This vulnerability is handled as CVE-2026-3480. The attack can be executed remotely. There is not any exploit available. Detailsinfo A vulnerability has been found in burlingtonbytes WP Blockade Plugin up to 0.9.14 on WordPress and classified as problematic. This vulnerability affects the function render_shortcode_preview of the component Shortcode Handler. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality. CVE summarizes: The WP Blockade plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 0.9.14. The plugin registers an admin_post action hook 'wp-blockade-shortcode-render' that maps to the render_shortcode_preview() function. This function lacks any capability check (current_user_can()) and nonce verification, allowing any authenticated user to execute arbitrary WordPress shortcodes. The function takes a user-supplied 'shortcode' parameter from $_GET, passes it through stripslashes(), and directly executes it via do_shortcode(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to execute arbitrary shortcodes, which could lead to information disclosure, privilege escalation, or other impacts depending on what shortcodes are registered on the site (e.g., shortcodes from other plugins that display sensitive data, perform actions, or include files). The weakness was released by Youcef Hamdani. The advisory is available at wordfence.com. This vulnerability was named CVE-2026-3480 since 03/03/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/08/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type WordPress Plugin Vendor burlingtonbytes Name WP Blockade Plugin Version 0.9.0 0.9.1 0.9.2 0.9.3 0.9.4 0.9.5 0.9.6 0.9.7 0.9.8 0.9.9 0.9.10 0.9.11 0.9.12 0.9.13 0.9.14 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.4 VulDB Meta Temp Score: 5.3 VulDB Base Score: 4.3 VulDB Temp Score: 4.2 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.5 CNA Vector (Wordfence): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Authorization CWE: CWE-862 / CWE-863 / CWE-285 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/03/2026 CVE reserved 04/08/2026 +35 days Advisory disclosed 04/08/2026 +0 days VulDB entry created 04/08/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: Youcef Hamdani Status: Not defined CVE: CVE-2026-3480 (🔒) GCVE (CVE): GCVE-0-2026-3480 GCVE (VulDB): GCVE-100-356026 Entryinfo Created: 04/08/2026 09:16 Changes: 04/08/2026 09:16 (65) Complete: 🔍 Cache ID: 99:5E6:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸