Nexter Extension <= 4.7.12 - Authenticated (Contributor+) Sensitive Information Exposure via Display Conditions Pickers
- ID
- WPSEC-2026-1083
- Plugin
- Nexter Extension – Security, Performance, Code Snippets & Site Toolkit (nexter-extension)
- Affected
- all versions before 4.7.13
- Remediation
- Update to 4.7.13 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weakness
- CWE-200
- Usage
- Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-16
- Attack surface
- Nexter Extension on WPSec AttackSurface
- Fix released
- Published
Description
The Nexter Extension plugin for WordPress is vulnerable to Sensitive Information Exposure via the Display Conditions pickers ('nxt_singular_archives_filters_ajax' AJAX action) in all versions up to, and including, 4.7.12. This is due to the action passing request-supplied WP_Query and WP_User_Query arguments through and returning the results without checking that the user can read each returned post or has the list_users capability. This makes it possible for authenticated attackers with Contributor-level access and above to see the titles of other users' private, draft and pending posts and to list the site's users.
References
- https://wpsec.com/vuln/WPSEC-2026-1083/
- https://plugins.svn.wordpress.org/nexter-extension/tags/4.7.13/
- https://wordpress.org/plugins/nexter-extension/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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