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Critical 9.2Published May 19, 2026

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

Updated under an hour ago ()

Does this affect you?

It affects TYPO3 Extension "Content Element Selector". Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
9.2 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-502
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
TYPO3
NVD analysis
Deferred
Record last updated
May 19, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
TYPO3 Extension "Content Element Selector"
typo3:extension_content_element_selector (from the name)
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
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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