
WordPress Click2Shell Vulnerability: How a Simple Link Click Leads to Server Compromise
WordPress patched a critical vulnerability called Click2Shell in September 2026 that allows attackers to force automatic theme installation through specially crafted URLs. The flaw exploits differences in how WordPress.org directory and administrator browsers parse the same link, enabling attackers to trigger theme installations when logged-in administrators click malicious links. When chained with secondary vulnerabilities in installed themes, the attack escalates to remote code execution with a CVSS score of 9.6. The vulnerability affects WordPress versions 6.0 through 7.1.0, with fixes released in version 7.1.1 across all supported branches back to 4.7. This incident highlights the growing trend of attackers targeting content management system vulnerabilities that can be chained together for maximum impact, particularly as WordPress powers over 40% of websites globally and remains a high-value target.
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