TYPO3 CMS - Insecure Deserialization in Core API (TYPO3 TYPO3 CMS)

CVE-2026-49740
MEDIUM 6.3

At a glance

Source
NVD
EPSS
EPSS 0.21 % · percentile 12 ()
State
PUBLISHED
Published
Updated
Assigner
TYPO3
NVD status
Deferred

Description

TYPO3's cache frontend (VariableFrontend) and persistent key-value store (Registry) deserialized PHP payloads without integrity validation or class restrictions. An attacker with write access to the underlying storage backend (cache store or sys_registry database table) could inject a crafted serialized payload to trigger PHP Object Injection, potentially exploiting a gadget chain to achieve Remote Code Execution or other high-impact effects. Exploiting this vulnerability requires direct local write access to the storage, such as the SQL database or file system. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.

Weaknesses (CWE)

  • CWE-502 — Deserialization of Untrusted Data

References

Scores

VersionScoreVectorScored by
CVSS 4.0MEDIUM 6.3CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:HTYPO3
CVSS 4.0MEDIUM 6.3CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H/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:XNVD · f4fb688c-4412-4426-b4b8-421ecf27b14a (Secondary)

Advisories

European references

CERT-FR advisories

Affected products

ProductVersions
TYPO3 · TYPO3 CMSaffected 0 < 10.4.57 ; affected 11.0.0 < 11.5.51 ; affected 12.0.0 < 12.4.46 ; affected 13.0.0 < 13.4.31 ; affected 14.0.0 < 14.3.3

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD