Arbitrary file upload in Expresstech Quiz And Survey Master
CVE-2020-35949
An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It made it possible for unauthenticated attackers to upload arbitrary files and achieve remote code execution. If a quiz question could be answered by uploading a file, only the Content-Type header was checked during the upload, and thus the attacker could use text/plain for a .php file.
Vulnerability class: Unrestricted File Upload
EPSS: 0.049 (91.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Expresstech Quiz_and_survey_master
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-35949?
- CVE-2020-35949 is a critical-severity vulnerability in Expresstech Quiz And Survey Master, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 10.0/10. Published 2021-01-01.
- How severe is CVE-2020-35949?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2020-35949 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.