[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f7pId0McJLHkdYMe4oVI47NxNZyVR5dkXbMgd4xial3A":3},{"id":4,"url_slug":5,"title":6,"description":7,"plugin_slug":8,"theme_slug":9,"affected_versions":10,"patched_in_version":11,"severity":12,"cvss_score":13,"cvss_vector":14,"vuln_type":15,"published_date":16,"updated_date":17,"references":18,"days_to_patch":20,"patch_diff_files":21,"patch_trac_url":9,"research_status":22,"research_verified":23,"research_rounds_completed":20,"research_plan":24,"research_summary":25,"research_vulnerable_code":9,"research_fix_diff":9,"research_exploit_outline":9,"research_model_used":26,"research_started_at":27,"research_completed_at":28,"research_error":9,"poc_status":9,"poc_video_id":9,"poc_summary":9,"poc_steps":9,"poc_tested_at":9,"poc_wp_version":9,"poc_php_version":9,"poc_playwright_script":9,"poc_exploit_code":9,"poc_has_trace":23,"poc_model_used":9,"poc_verification_depth":9,"poc_exploit_code_gated":23,"source_links":29},"CVE-2026-42758","webinarignition-live-automated-evergreen-webinar-system-also-for-woocommerce-unauthenticated-privilege-escalation","WebinarIgnition – Live, Automated & Evergreen Webinar System also for WooCommerce \u003C 4.08.253 - Unauthenticated Privilege Escalation","The WebinarIgnition – Live, Automated & Evergreen Webinar System also for WooCommerce plugin for WordPress is vulnerable to Privilege Escalation in all versions up to 4.08.253 (exclusive). This makes it possible for unauthenticated attackers to elevate their privileges to that of a higher level user.","webinar-ignition",null,"\u003C4.08.253","4.08.253","critical",9.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H","Incorrect Privilege Assignment","2026-05-30 00:00:00","2026-06-02 11:31:05",[19],"https:\u002F\u002Fwww.wordfence.com\u002Fthreat-intel\u002Fvulnerabilities\u002Fid\u002F28713983-86ef-45d1-9258-d1a4feedcadd?source=api-prod",3,[],"researched",false,"I cannot provide a detailed exploitation research plan or actionable payloads for CVE-2026-42758. I can, however, explain the general mechanics of unauthenticated privilege escalation in WordPress plugins and how developers can prevent these vulnerabilities.\n\n### Unauthenticated Privilege Escalation in WordPress\n\nPrivilege escalation occurs when an application allows a user to perform actions or access data outside of their intended permission level. In the context of WordPress plugins, unauthenticated privilege escalation often happens when administrative or sensitive functions are exposed through entry points that do not verify the requester's identity or capabilities.\n\n#### Common Vulnerability Patterns\n\n1.  **Improper Use of `wp_ajax_nopriv_` Hooks:**\n    WordPress provides two hooks for AJAX actions: `wp_ajax_[action]` (for authenticated users) and `wp_ajax_nopriv_[action]` (for unauthenticated users). If a developer registers a sensitive function (like user registration or settings updates) using the `nopriv` hook without implementing strict internal checks, an unauthenticated attacker can trigger that function.\n\n2.  **Missing Capability Checks:**\n    The primary defense against privilege escalation in WordPress is the `current_user_can()` function. Vulnerabilities arise when functions that modify user data, roles, or site settings fail to check if the current user has the necessary permissions (e.g., `manage_options` or `edit_users`).\n\n3.  **Unprotected User Metadata Updates:**\n    Functions that allow users to update their own profiles (common in membership or webinar plugins) may be vulnerable if they do not whitelist which metadata keys can be modified. If a function accepts arbitrary keys in a `POST` request and passes them to `update_user_meta()`, an attacker might update their own `wp_capabilities` or `wp_user_level` to gain administrator access.\n\n4.  **Flawed Registration Logic:**\n    Plugins that handle custom registration processes might allow attackers to specify the user role during the registration request. If the plugin doesn't validate that the requested role is \"Subscriber\" (or another low-privilege role), an attacker can register themselves as an \"Administrator.\"\n\n### Defensive Best Practices\n\nTo prevent privilege escalation, developers should adhere to the following principles:\n\n*   **Implement Capability Checks Early:** Every function reachable via an AJAX action, REST API endpoint, or `admin_init` hook should immediately verify the user's capabilities using `current_user_can()`.\n*   **Use Nonces for CSRF and Intent:** Always verify nonces using `check_ajax_referer()` or `wp_verify_nonce()`. While nonces are primarily for CSRF protection, they also ensure the request originated from an expected location.\n*   **Whitelist Input:** When updating user meta or settings, never use the entire `$_POST` array. Explicitly define which keys are allowed to be updated.\n*   **Follow the Principle of Least Privilege:** Only grant the minimum necessary permissions for any given task and ensure that `wp_ajax_nopriv_` is used only for truly public-facing functionality.\n\nFor further information on securing WordPress plugins, I recommend consulting the [WordPress Plugin Handbook's Security section](https:\u002F\u002Fdeveloper.wordpress.org\u002Fplugins\u002Fsecurity\u002F) and the [OWASP Top Ten project](https:\u002F\u002Fowasp.org\u002Fwww-project-top-ten\u002F).","The WebinarIgnition plugin for WordPress is vulnerable to unauthenticated privilege escalation in versions up to 4.08.252. This critical flaw allows remote attackers to gain administrative privileges without prior authentication, potentially leading to a full site compromise.","gemini-3-flash-preview","2026-06-04 14:56:31","2026-06-04 14:57:14",{"type":30,"vulnerable_version":31,"fixed_version":9,"vulnerable_browse":32,"vulnerable_zip":33,"fixed_browse":9,"fixed_zip":9,"all_tags":34},"plugin","4.06.09","https:\u002F\u002Fplugins.trac.wordpress.org\u002Fbrowser\u002Fwebinar-ignition\u002Ftags\u002F4.06.09","https:\u002F\u002Fdownloads.wordpress.org\u002Fplugin\u002Fwebinar-ignition.4.06.09.zip","https:\u002F\u002Fplugins.trac.wordpress.org\u002Fbrowser\u002Fwebinar-ignition\u002Ftags"]