CVE-2017-14251

high-risk
Published 2017-09-11

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.

Do I need to act?

~
3.5% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (20)

Affected Vendors

Typo3

References (8)

http://blog.emaze.net/2017/12/typo3-unrestricted-file-upload-remote.html
Third Party Advisory http://www.securityfocus.com/bid/100620
Third Party Advisory http://www.securitytracker.com/id/1039295
Exploit https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-201...
http://blog.emaze.net/2017/12/typo3-unrestricted-file-upload-remote.html
Third Party Advisory http://www.securityfocus.com/bid/100620
Third Party Advisory http://www.securitytracker.com/id/1039295
Exploit https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-201...
61
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 7/34 · Low
Exposure 24/34 · High