CVE-2026-75921: Software Security Vulnerability Vulnerability
HIGHCVE-2026-75921 is a HIGH (CVSS 7.2) security vulnerability vulnerability (CWE-863: Incorrect Authorization) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.. Remediation is available in the latest vendor maintenance releases.
CVE-2026-75921 at a Glance
Security Impact
CVSS: 7.2
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
How to Fix CVE-2026-75921
To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:treeHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2026-75921, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:treeAnalyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.
Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
References
Frequently Asked Questions
What is CVE-2026-75921?
Which Software versions are affected?
What version fixes CVE-2026-75921?
What is the CVSS score of CVE-2026-75921?
What CWE is associated with CVE-2026-75921?
How can I check Maven dependencies for CVE-2026-75921?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-xf8m-6j3r-c89p",
"modified" : "2026-09-01T06:32:54Z",
"published" : "2026-09-01T06:32:54Z",
"aliases" : [ "CVE-2026-75921" ],
"details" : "The Master Addons for Elementor – Elementor Addons, Widgets, Mega Menu Builder, Popup Builder, Widget Builder & Template Kits plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 3.1.9 via the upload_template_kit function. This is due to incorrect authorization on the upload_template_kit() AJAX handler, which requires only upload_files capability instead of the manage_options required by all sibling handlers, combined with missing per-entry file type filtering after ZIP extraction. This makes it possible for authenticated attackers, with editor-level access and above, to upload files that may be executable, which makes remote code execution possible. Editors can satisfy the nonce requirement because the required nonces are localized on the standard Pages list screen, which is accessible to any user with the edit_pages capability.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
} ],
"affected" : [ ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-75921"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/master-addons/tags/3.1.8/inc/admin/page-importer.php#L84"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/master-addons/tags/3.1.8/inc/admin/templates/kits/class-importer.php#L2124"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/master-addons/tags/3.1.8/inc/admin/templates/kits/class-importer.php#L2198"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/master-addons/tags/3.1.8/inc/admin/templates/kits/class-importer.php#L49"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/master-addons/tags/3.1.9/inc/admin/page-importer.php#L84"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/master-addons/tags/3.1.9/inc/admin/templates/kits/class-importer.php#L2124"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/master-addons/tags/3.1.9/inc/admin/templates/kits/class-importer.php#L2198"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/browser/master-addons/tags/3.1.9/inc/admin/templates/kits/class-importer.php#L49"
}, {
"type" : "WEB",
"url" : "https://plugins.trac.wordpress.org/changeset?reponame=&old=3666783%40master-addons&new=3666783%40master-addons"
}, {
"type" : "WEB",
"url" : "https://www.wordfence.com/threat-intel/vulnerabilities/id/11314a07-70f7-4a63-837f-4812905a55fe?source=cve"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-863" ],
"severity" : "HIGH",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2026-09-01T05:17:09Z"
}
}