Smart Slider 3 Pro version 3.5.1.35 for WordPress and Joomla contains a multi-stage remote access toolkit injected through a compromised update system that allows unauthenticated attackers to execute arbitrary code and commands. Attackers can trigger pre-authentication remote shell execution via HTTP headers, establish authenticated backdoors accepting arbitrary PHP code or OS commands, create hidden administrator accounts, exfiltrate credentials and access keys, and maintain persistence through multiple injection points including must-use plugins and core file modifications.

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Fixes

Solution

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Workaround

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History

Tue, 14 Apr 2026 04:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 10 Apr 2026 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Vendors & Products Wordpress
Wordpress wordpress

Thu, 09 Apr 2026 23:15:00 +0000

Type Values Removed Values Added
Description Smart Slider 3 Pro version 3.5.1.35 for WordPress and Joomla contains a multi-stage remote access toolkit injected through a compromised update system that allows unauthenticated attackers to execute arbitrary code and commands. Attackers can trigger pre-authentication remote shell execution via HTTP headers, establish authenticated backdoors accepting arbitrary PHP code or OS commands, create hidden administrator accounts, exfiltrate credentials and access keys, and maintain persistence through multiple injection points including must-use plugins and core file modifications.
Title Smart Slider 3 Pro 3.5.1.35 Supply Chain Attack Remote Access Toolkit
First Time appeared Nextendweb
Nextendweb smart Slider 3
Weaknesses CWE-506
CPEs cpe:2.3:a:nextendweb:smart_slider_3:3.5.1.35:*:*:*:*:joomla:*:*
cpe:2.3:a:nextendweb:smart_slider_3:3.5.1.35:*:*:*:*:wordpress:*:*
Vendors & Products Nextendweb
Nextendweb smart Slider 3
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-14T03:13:40.678Z

Reserved: 2026-03-27T15:24:06.752Z

Link: CVE-2026-34424

cve-icon Vulnrichment

Updated: 2026-04-14T03:13:35.312Z

cve-icon NVD

Status : Deferred

Published: 2026-04-09T23:17:00.540

Modified: 2026-04-15T15:00:32.790

Link: CVE-2026-34424

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-10T09:27:31Z

Weaknesses