Arbitrary file upload in Typo3
CVE-2017-14251
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.
Vulnerability class: Unrestricted File Upload
EPSS: 0.023 (81.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Typo3 — versions 7.6.0, 7.6.1, 7.6.2
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- cve@mitre.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2017-14251?
- CVE-2017-14251 is a high-severity vulnerability in Typo3, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2017-09-11.
- How severe is CVE-2017-14251?
- High severity. CVSS v3 base score is 8.8 out of 10.