CVE-2026-4326
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe Vertex Addons for Elementor plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 1.6.4. This is due to improper authorization enforcement in the activate_required_plugins() function. Specifically, the current_user_can('install_plugins') capability check does not terminate execution when it fails — it only sets an error message variable while allowing the plugin installation and activation code to execute. The error response is only sent after the installation and activation have already completed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate arbitrary plugins from the WordPress.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe Vertex Addons for Elementor plugin for WordPress versions up to 1.6.4 contains a missing authorization vulnerability in the activate_required_plugins() function. The current_user_can('install_plugins') capability check fails to terminate execution when it returns false—it merely sets an error message variable while allowing the actual plugin installation and activation code to continue. The error response is only returned after these operations have already completed. This allows any authenticated user with Subscriber-level access or higher to install and activate arbitrary WordPress plugins.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check if Vertex Addons for Elementor is installedIn WordPress admin, navigate to Plugins > Installed Plugins and search for 'Vertex Addons for Elementor' in the plugin listAffected if The plugin is not found in the installed plugins list (not affected)
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Verify the installed version numberIn the plugins list, locate Vertex Addons for Elementor and note the version number displayed. Compare this version to the affected range: any version through 1.6.4 is vulnerableAffected if Version is 1.6.4 or lower
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Confirm if the plugin is currently activeIn WordPress admin under Plugins > Installed Plugins, check whether Vertex Addons for Elementor shows as 'Active' rather than 'Inactive'Affected if Plugin is active and version is 1.6.4 or lower - the vulnerable code can be invoked
If Vertex Addons for Elementor is installed, active, and running version 1.6.4 or lower, the environment is affected by this authorization bypass.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpdate the plugin to a version that fixes this authorization bypass; until then, restrict or disable the affected functionality via web application firewall rules and consider removing the plugin if no patched version is available. The capability check must be moved to properly halt execution before any plugin operations occur.
- Consultation2.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
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Free · runs locallyCheck whether your project pulls in CVE-2026-4326 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-4326 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data