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TYPO3 Arbitrary Code Execution

High severity GitHub Reviewed Published May 17, 2022 to the GitHub Advisory Database • Updated Apr 25, 2024

Package

composer typo3/cms (Composer)

Affected versions

>= 7.6.0, < 7.6.22
>= 8.0.0, < 8.7.5

Patched versions

7.6.22
8.7.5

Description

Unrestricted File Upload vulnerability in the fileDenyPattern in sysext/core/Classes/Core/SystemEnvironmentBuilder.php in TYPO3 7.6.0 to 7.6.21 and 8.0.0 to 8.7.4 allows remote authenticated users to upload files with a .pht extension and consequently execute arbitrary PHP code.

References

Published by the National Vulnerability Database Sep 11, 2017
Published to the GitHub Advisory Database May 17, 2022
Reviewed Apr 25, 2024
Last updated Apr 25, 2024

Severity

High
8.8
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CVE ID

CVE-2017-14251

GHSA ID

GHSA-fh4q-hxrw-cjqq

Source code

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