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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.023 (82.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- TYPO3 — versions 7.6.0, 7.6.1, 7.6.2
Weakness classification (CWE)
References
- typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2017-007/ (Exploit, Vendor Advisory)
- www.securityfocus.com/bid/100620 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1039295 (VDB Entry, Third Party Advisory, vdb-entry)
- blog.emaze.net/2017/12/typo3-unrestricted-file-upload-remote.html
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.