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Vulnerabilities & CVEs BleepingComputer 1 month ago

Critical Avada WordPress theme flaw enables zero-click RCE

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CyberNew Threat Research Desk
• Original Reporting: BleepingComputer
CyberNew Threat Intel Assessment
Assessed Severity: CRITICAL
Impacted Surface
Cloud & Distributed Infrastructure
Intelligence Sector
Vulnerabilities & CVEs

Analyst Takeaway

"A critical vulnerability chain in the popular Avada theme for WordPress can be exploited by an unauthenticated attacker to execute arbitrary PHP code on the server. The exploit chains six security issues into a zero-click attack. The flaws are collectively tracked as CVE-2026-18431 and received a 9.8 critical severity score. The attack comprises exploits for authorization, input-validation,..."

Recommended Defense & Mitigation

  • Emergency Patching: Prioritize vendor patches and CVE mitigation across internet-facing assets immediately.
  • Perimeter Audit: Inspect perimeter firewall logs and hunt for unauthorized RCE indicators.
Curated & Verified by CyberNew Threat Intelligence Desk Standard Defense Framework (NIST / MITRE ATT&CK)

Critical Avada WordPress theme flaw enables zero-click RCE

A critical vulnerability chain in the popular Avada theme for WordPress can be exploited by an unauthenticated attacker to execute arbitrary PHP code on the server.

The exploit chains six security issues into a zero-click attack. The flaws are collectively tracked as CVE-2026-18431 and received a 9.8 critical severity score.

The attack comprises exploits for authorization, input-validation, trust-boundary, and file-handling weaknesses, which must be executed in a specific order to enable arbitrary PHP code execution on a target server.

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Source Verification & Original Intelligence

This threat report was reviewed by CyberNew analysts and cross-referenced with primary security disclosures from BleepingComputer.

Primary Advisory →