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Vulnerability · Published May 13, 2020 · Assigned by GitHub_M

CVE-2020-11067Deserialization of Untrusted Data in TYPO3 CMS

High 8.8

In plain English

A high-severity unsafe deserialization in TYPO3 CMS from TYPO3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 81% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)2.0%top 19.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In TYPO3 CMS 9.0.0 through 9.5.16 and 10.0.0 through 10.4.1, it has been discovered that backend user settings (in $BE_USER->uc) are vulnerable to insecure deserialization. In combination with vulnerabilities of third party components, this can lead to remote code execution. A valid backend user account is needed to exploit this vulnerability. This has been fixed in 9.5.17 and 10.4.2.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagisttypo3/cms10.4.2GHSA-2wj9-434x-9hvp
Packagisttypo3/cms9.5.17GHSA-2wj9-434x-9hvp
Packagisttypo3/cms-core9.5.17GHSA-2wj9-434x-9hvp
Packagisttypo3/cms-core10.4.2GHSA-2wj9-434x-9hvp

Affected products (as reported)

VendorProductVersions
TYPO3 TYPO3 CMS >= 9.0.0, < 9.5.17>= 10.0.0, < 10.4.2

Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References