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Two newly disclosed vulnerabilities in WordPress plugins can let attackers elevate privileges to Administrator by abusing improper handling of user profile metadata. CVE-2026-4261 affects Expire Users through version 1.2.2, where the save_extra_user_profile_fields function allows modification of the on_expire_default_to_role meta value; an authenticated attacker with Subscriber-level access or higher can exploit the flaw to gain full administrative control. The issue was classified as CWE-862 and carries a high-severity CVSS v3.1 score with the vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
A second flaw, CVE-2026-3629, impacts Import and export users and customers through version 1.29.7 and can, under specific conditions, allow even unauthenticated attackers to become administrators. The plugin's save_extra_user_profile_fields logic fails to block sensitive keys such as wp_capabilities because get_restricted_fields does not restrict them, enabling a crafted registration request to assign elevated privileges when "Show fields in profile" is enabled and a previously imported CSV included a wp_capabilities column header. That vulnerability was classified as CWE-269 with a CVSS v3.1 vector of AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
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3 events from the most recent confirmed update back to the earliest known activity.
A privilege-escalation vulnerability affecting Import and export users and customers versions up to 1.29.7 was disclosed. Under specific conditions, an unauthenticated attacker can submit a crafted registration request to set wp_capabilities and obtain administrator privileges.
A privilege-escalation vulnerability affecting Expire Users versions up to 1.2.2 was disclosed. The flaw allows an authenticated Subscriber-level user or higher to modify the on_expire_default_to_role meta via save_extra_user_profile_fields and gain administrator privileges.
Wordfence received vulnerability reports on March 21, 2026 for two WordPress plugin privilege-escalation flaws: CVE-2026-4261 in Expire Users and CVE-2026-3629 in Import and export users and customers.
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Multiple high-severity flaws in WordPress plugins exposed sites to account takeover and, in one case, possible remote code execution. In **Users Manager PN**, tracked as `CVE-2026-4003`, a missing authorization check in the `userspn_ajax_nopriv_server()` handler let unauthenticated attackers overwrite arbitrary user metadata through the `userspn_form_save` AJAX action. Because the required `userspn-nonce` was reportedly exposed on public pages, attackers could abuse the bug with a single crafted request to modify profiles and potentially seize control of administrator accounts. The issue affected versions through `1.1.15` and was reportedly fixed in `1.1.20`. Two additional vulnerabilities were disclosed in **WP Captcha PRO** affecting versions through `5.38`. `CVE-2026-5415` allowed **Subscriber-level users or higher** to generate temporary login links for arbitrary accounts because the `ajax_run_tool()` AJAX handler checked only a nonce and not user capabilities, enabling authentication bypass and administrator takeover. Separately, `CVE-2026-5411` allowed authenticated low-privilege users to upload attacker-controlled files by poisoning license metadata and abusing `sync_cloud_protection()` to download and extract content into a web-accessible uploads directory; if PHP execution was possible and `allow_url_fopen` was enabled for remote retrieval, the flaw could be escalated to **remote code execution** via a webshell.
Jun 29, 2026
A critical vulnerability, **CVE-2025-14533**, was disclosed in the WordPress plugin *Advanced Custom Fields: Extended* affecting versions **<= 0.9.2.1**. The issue is an **unauthenticated privilege escalation** in the plugin’s user-form handling, where the `insert_user` logic does not properly restrict which roles can be assigned during registration; as a result, an attacker can submit a registration request specifying the **`administrator`** role and obtain full administrative access under certain configurations. Reporting indicates exploitation depends on site configuration: the flaw is reachable when a form is set up such that the **`role`** value is mapped to a custom field / user role field is present in the form. The weakness was identified by **Andrea Bocchetti** via the **Wordfence Bug Bounty Program**, and is associated with **CWE-269 (Improper Privilege Management)**; once admin access is obtained, attackers can fully compromise the site (e.g., upload malicious plugins/themes, plant backdoors, or alter content for redirects).
Jun 29, 2026
Multiple high-severity flaws in popular WordPress membership plugins can let attackers create administrator accounts and fully compromise affected sites. In the **User Registration & Membership** plugin, `CVE-2026-1492` affects versions through `5.1.2` and allows **unauthenticated** attackers to bypass authentication by abusing exposed nonce values, weak server-side validation, and legitimate AJAX functionality in membership workflows, including requests to `admin-ajax.php`. Researchers said successful exploitation can lead to malicious plugin installation, persistence, data theft, site defacement, and potential remote code execution; the issue is fixed in version `5.1.3`, and public exploit code is available. A separate cluster of vulnerabilities affects **WishList Member** through version `3.30.1`, where several missing authorization checks let **Subscriber-level or higher** users escalate privileges. `CVE-2026-6895` and `CVE-2026-6419` can expose the plugin's REST API Secret Key through AJAX actions, while `CVE-2026-6898` and `CVE-2026-6897` allow authenticated users to generate or modify that key and other plugin settings. With the API key, an attacker can create a membership level mapped to the WordPress administrator role, register a new admin account, and take over the site, extending a pattern of recurring authentication-bypass and privilege-escalation weaknesses previously seen in related membership plugin codebases.
Jun 29, 2026