CVE-2020-35949 (GCVE-0-2020-35949)

Vulnerability from cvelistv5 – Published: 2021-01-01 03:27 – Updated: 2024-08-04 17:16
VLAI KEVintel KEV
Summary
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.
Severity
10 (Critical)
CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N
CWE
  • n/a
Assigner
References
KEVintel KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 65d379b0-3659-4fe1-83b0-fadda6482b17

Vulnerability ID: CVE-2020-35949

Status: Confirmed

Status Updated: 2020-08-13 12:09 UTC

Exploited: Yes

Timestamps
First Seen: 2020-08-13
Asserted: 2020-08-13
Scope
Notes: KEVIntel entry: 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... | Affected: WordPress / Quiz and Survey Master plugin | CVSS: 10.0 (CRITICAL) | EPSS: 0.13311 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title 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...
Vendor WordPress
Product Quiz and Survey Master plugin
Added Date 2020-08-13T12:09:59.000Z
Cvss Score 10.0
Epss Score 0.13311
Cvss Severity CRITICAL
Epss Percentile 0.93758
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-19 12:53 UTC | Updated: 2026-06-19 12:53 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.