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CVE-2026-46725

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0bc512917b1e9dfea8549557db0c8d0f983d1518f7d8b12fe4cfce0ccfe239e6
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"collectionURL":"https://packagist.org/","defaultStatus":"unaffected","packageName":"mmc/ceselector","product":"Extension \"Content Element Selector\"","vendor":"TYPO3","versions":[{"lessThan":"6.0.1","status":"affected","version":"6.0.0","versionType":"semver"},{"lessThan":"5.0.1","status":"affected","version":"5.0.0","versionType":"semver"},{"lessThan":"4.0.2","status":"affected","version":"4.0.0","versionType":"semver"},{"lessThan":"3.0.3","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8139f1055a71b71e7b0b3309d89e37ae57f4cc4d000da3c81e14d0ebd776611b · sha256:d9e7eb3aeb1647f9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":9.2,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityIm…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:8139f1055a71b71e7b0b3309d89e37ae57f4cc4d000da3c81e14d0ebd776611b · sha256:d9e7eb3aeb1647f9… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-502","description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8139f1055a71b71e7b0b3309d89e37ae57f4cc4d000da3c81e14d0ebd776611b · sha256:d9e7eb3aeb1647f9… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"tags":["vendor-advisory"],"url":"https://typo3.org/security/advisory/typo3-ext-sa-2026-013"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8139f1055a71b71e7b0b3309d89e37ae57f4cc4d000da3c81e14d0ebd776611b · sha256:d9e7eb3aeb1647f9… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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