Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-4065 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

The Smart Slider 3 plugin for WordPress is vulnerable to unauthorized access and modification of data due to missing capability checks on multiple wp_ajax_smart-slider3 controller actions in all versions up to, and including, 3.5.1.33. The display_admin_ajax() method does not call checkForCap() (which requires unfiltered_html capability), and several controller actions only validate the nonce (validateToken()) without calling validatePermission(). This makes it possible for authenticated attackers, with Contributor-level access and above, to enumerate slider metadata and create, modify, and delete image storage records by obtaining the nextend_nonce exposed on post editor pages.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://plugins.trac.wordpress.org/browser/smart-slider-3/tags/3.5.1.32/Nextend/Framework/Image/ControllerAjaxImage.php#L37	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/smart-slider-3/tags/3.5.1.32/Nextend/SmartSlider3/Application/Admin/Sliders/ControllerAjaxSliders.php#L26	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/smart-slider-3/tags/3.5.1.32/Nextend/SmartSlider3/Platform/WordPress/Admin/AdminHelper.php#L155	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/smart-slider-3/tags/3.5.1.32/Nextend/SmartSlider3/Platform/WordPress/HelperTinyMCE.php#L30	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/smart-slider-3/trunk/Nextend/SmartSlider3/Platform/WordPress/Admin/AdminHelper.php#L155	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3489689%40smart-slider-3%2Ftrunk&old=3439582%40smart-slider-3%2Ftrunk&sfp_email=&sfph_mail=	[email protected]	Source CodeVendor
https://www.wordfence.com/threat-intel/vulnerabilities/id/53a08b59-b7e0-419a-bfc3-528bcddb1ac2?source=cve	[email protected]	AdvisoryBundleRemedy

see all 7 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-862	Missing Authorization	[email protected]

Affected Products

Product	Versions
Nextend Smart Slider 3	<= 3.5.1.33
CPE cpe:2.3:a:nextendweb:smart_slider_3::::::wordpress::* Remediation Upgrade: 3.5.1.34moderate effort

Change History

4 change records found show changes

Date	Action	Recorded By
Jul 24, 2026	CVE Translated	[email protected]
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 7, 2026	New CVE Received	[email protected]