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Critical 9.8Published Apr 9, 2026

CVE-2026-34424Smart Slider 3 Pro 3.5.1.35 Supply Chain Attack Remote Access Toolkit

Updated under an hour ago ()

Does this affect you?

It affects Nextendweb Smart Slider 3 Pro for WordPress and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-506
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Deferred
Record last updated
May 14, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Nextendweb Smart Slider 3 Pro for WordPress
nextendweb:smart_slider_3_pro_for_wordpress (from the name)
3.5.1.35; through 3.5.1.34 not affected; 3.5.1.36 not affected
CNA record
Nextendweb Smart Slider 3 Pro for Joomla
nextendweb:smart_slider_3_pro_for_joomla (from the name)
3.5.1.35; through 3.5.1.34 not affected; 3.5.1.36 not affected
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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