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CVE-2026-34424

Smart Slider 3 Pro 3.5.1.35 Supply Chain Attack Remote Access Toolkit

Published
Last modified
published
Not listed in CISA KEV
Fix
Fix or patch referenced
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  3. Record last updated

Affected versions

  • Nextendweb Smart Slider 3 Pro for WordPress

    3.5.1.35

  • Nextendweb Smart Slider 3 Pro for Joomla

    3.5.1.35

References 5

smartslider.helpscoutdocs.com

patchstack.com

mysites.guru