CVE-2026-46725 json
Remote Code Execution in extension "Content Element Selector" (ceselector)
published 2026-05-19 5 mo ago modified 2026-10-26 14 d ago also GHSA-8x3j-439w-537c , EUVD-2026-30865
- cvss
- 9.2
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.6%
- EPSS 2.6% chance of exploitation in 30 days, percentile 85%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
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.
Patch / fix
- packagist mmc/ceselector 3.0.3, 4.0.2, 5.0.1, 6.0.1
- TYPO3 Extension "Content Element Selector" 3.0.3, 4.0.2, 5.0.1, 6.0.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
2.63% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template TYPO3 ceselector Extension - Insecure Deserialization nuclei detection template
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.2 | 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 |
| CNA | 4.0 | 9.2 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | mmc/ceselector | >=6.0.0, <6.0.1 >=5.0.0, <5.0.1 >=4.0.0, <4.0.2 <3.0.3 |
6.0.1 5.0.1 4.0.2 3.0.3 |
Affected products
- TYPO3 Extension "Content Element Selector"
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
Sources
- CVE List CVE-2026-46725
- GitHub Advisory GHSA-8x3j-439w-537c
- NVD CVE-2026-46725
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