CVE-2026-12853: Flamingo <= 2.6.2 - Authenticated (Contributor+) Missing Authorization to Unauthorized Tag Information Disclosure via wp.getTerms and ajax-tag-search
The Flamingo plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.6.2. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to enumerate taxonomy terms including channel names derived from Contact Form 7 form titles that may reveal internal form purposes, department names, or workflow identifiers, as well as submission counts per channel and contact tag names. The plugin's flamingomapmetacap() filter restricts access to Flamingo's admin UI but does not extend to WordPress core APIs such as XML-RPC wp.getTerms and admin-ajax ajax-tag-search.
Affected Software
Event History
Frequently Asked Questions
Which users can exploit this issue?
An attacker must be authenticated to the WordPress site with Contributor-level access or higher. No user interaction is required, and the affected interfaces are network-accessible.
What information could be exposed?
The issue allows enumeration of taxonomy terms, including channel names derived from Contact Form 7 form titles, submission counts per channel, and contact tag names. Channel names may disclose internal form purposes, department names, or workflow identifiers.
Why does restricting access to Flamingo's admin interface not prevent this?
Flamingo's flamingo_map_meta_cap() filter restricts the plugin's admin UI, but it does not apply to WordPress core interfaces. The affected term data can still be queried through XML-RPC wp.getTerms and the admin-ajax ajax-tag-search endpoint.