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Vulnerability record · CVE-2026-14498 · published 16 August 2026

CVE-2026-14498: Unrestricted file upload vulnerability

The Query Wrangler plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.5.57 via the 'options' parameter parameter. This is due to missing capability check and nonce verification on the wp_ajax_qw_form_ajax handler, combined with unsanitized attacker-controlled options fully replacing saved query options and being passed directly to call_user_func_array() guarded only by function_exists(). This makes it possible for authenticated attackers, with subscriber-level access and above, to execute code on the server. Exploitation requires only that at least one query row exists in the database, as the query_id is a small enumerable integer with no further access control.

8.8 CVSS 3.1 High EPSS 1.0% · top 37.8% CWE-434 · Unrestricted file upload Deferred
8.8CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
6References
20 Aug 2026Last modified by NVD

Description

The Query Wrangler plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.5.57 via the 'options' parameter parameter. This is due to missing capability check and nonce verification on the wp_ajax_qw_form_ajax handler, combined with unsanitized attacker-controlled options fully replacing saved query options and being passed directly to call_user_func_array() guarded only by function_exists(). This makes it possible for authenticated attackers, with subscriber-level access and above, to execute code on the server. Exploitation requires only that at least one query row exists in the database, as the query_id is a small enumerable integer with no further access control.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://plugins.trac.wordpress.org/browser/query-wrangler/trunk/admin/ajax.php#L11
https://plugins.trac.wordpress.org/browser/query-wrangler/trunk/admin/templates/preview-json.php#L8
https://plugins.trac.wordpress.org/browser/query-wrangler/trunk/includes/fields/callback_field.php#L47
https://plugins.trac.wordpress.org/browser/query-wrangler/trunk/query-wrangler.php#L147
https://plugins.trac.wordpress.org/changeset?reponame=&old=3640744%40query-wrangler&new=3640744%40query-wrangler
https://www.wordfence.com/threat-intel/vulnerabilities/id/2f9faa56-c550-465f-b0b0-8bf58f5e8d7a?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-14498), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.