THREATPORT/VULNERABILITY/CVE-2020-35949
CRITICAL SEVERITY

CVE-2020-35949

Quiz And Survey Master vulnerability

CVSS
10.0
EPSS
4.9%
EPSS pct
91th
Exploited
No known
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.
Affected vendor
Expresstech
Affected product
Quiz And Survey Master
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-434 — Unrestricted Upload of File with Dangerous Type
Published
2021-01-01

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 4.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2020-35949

  • Confirm whether Expresstech Quiz And Survey Master is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-35949.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-35949

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-35949 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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