What’s Vulnerable › Vulnerabilities
CVE-2026-46725: Remote Code Execution in extension "Content Element Selector" (ceselector)
- Severity: critical (CVSS 9.2 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.6% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-05-19 · updated 2026-10-26
- Weakness: CWE-502
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.
Affected products
- TYPO3 Extension "Content Element Selector": from 6.0.0 before 6.0.1; from 5.0.0 before 5.0.1; from 4.0.0 before 4.0.2; before 3.0.3 — fixed in 3.0.3, 4.0.2, 5.0.1, 6.0.1
How to fix
Upgrade to a fixed version: TYPO3 Extension "Content Element Selector" 3.0.3, 4.0.2, 5.0.1, 6.0.1. Check the vendor advisory for mitigations.
References
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