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CVE-2026-15964 is a critical authentication bypass vulnerability in the Single Sign On For TNG plugin for WordPress affecting all versions up to and including 2.0.0. The flaw resides in the plugin’s password reset handling within the ssoprocess_ajax() function, which is exposed through an unauthenticated AJAX action. When invoked with the setnewpassword operation, the function accepts an attacker-controlled email parameter and calls WordPress password reset functionality for the resolved account without verifying account ownership, requiring an email confirmation workflow, or enforcing a capability check. Although the request path uses check_ajax_referer(), the required nonce is publicly exposed to front-end visitors through localized JavaScript, and for logged-out users this does not provide meaningful authorization. As a result, a remote unauthenticated attacker can reset the password of arbitrary WordPress users, including administrators, and take control of the site.
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No public exploit code observed for this vulnerability.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.