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Fencer Vulns
high 8.8

CVE-2019-12747 json

TYPO3 Vulnerable to Insecure Deserialization

published 2019-07-09 7 y ago modified 2026-06-17 4 mo ago also GHSA-86hp-xrhj-fhpq , EUVD-2022-3124

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

TYPO3 8.x through 8.7.26 and 9.x through 9.5.7 allows Deserialization of Untrusted Data.

Patch / fix

  • packagist typo3/cms-core 8.7.27, 9.5.8
  • packagist typo3/cms 8.7.27, 9.5.8

Exploit prediction

1.53% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
packagist typo3/cms-core
>=8.0.0, <8.7.27
>=9.0.0, <9.5.8
8.7.27
9.5.8
packagist typo3/cms
>=8.0.0, <8.7.27
>=9.0.0, <9.5.8
8.7.27
9.5.8

Classification

Weakness
  • CWE-502 Deserialization of Untrusted Data

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.