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CVE-2026-46725 PoC — Remote Code Execution in extension "Content Element Selector" (ceselector)

Source
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-46725.yaml
Associated Vulnerability
Title:Remote Code Execution in extension "Content Element Selector" (ceselector) (CVE-2026-46725)
Description:The extension passes an attacker-controlled cookie directly to PHP's unserialize() without safely processing the input. A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server. Exploitation requires the content element to be configured with "Persistent Mode: Static" in the plugin settings.
Description
TYPO3 extension contains a PHP Object Injection caused by passing attacker-controlled cookie to unserialize() without validation, letting remote unauthenticated attackers achieve remote code execution, exploit requires Persistent Mode: Static configuration.
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