CVE-2020-35951

mediumpriority · attend · 67OT risk · highEPSS 0.763 · 100 %ileEUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

76.3% (100th) EPSS

CVSS 6.4 · medium

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It allows users to delete arbitrary files such as wp-config.php file, which could effectively take a site offline and allow an attacker to reinstall with a WordPress instance under their control. This occurred via qsm_remove_file_fd_question, which allowed unauthenticated deletions (even though it was only intended for a person to delete their own quiz-answer files).

cvss

Technical severity, 0–10. One row per scoring source.

9.9

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.4–9.9

v2.06.4mediumAV:N/AC:L/Au:N/C:N/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9

v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.3

v3.19.9criticalCVSS:3.1/AC:L/AV:N/A:H/C:L/I:L/PR:N/S:C/UI:Nsecondary · ENISA EU

v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:Hsecondary · cve@mitre.org USexploitability 3.9 · impact 5.3

v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USprimary

affected products (2)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
expresstech quiz and survey master< 7.0.1nvdUScpe:2.3:a:expresstech:quiz_and_survey_master:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-01-01modified 2026-06-17

related (4,469)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-67277US	high8.2OT critical	1.56% (75th)	KEV	2026-09-05
RouterOS accepts a "related" btest connection before the corresponding primary session has completed authentication. An unauthenticated client can use this state to start an IPv4 U…
CVE-2026-81578US	critical9.8OT critical	83.7% (100th)	KEV	2026-08-28
An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG. Under specific conditions, unauthenticated remote requests targeting…
CVE-2026-72529US	—OT critical	1.46% (74th)	KEV	2026-08-19
A remote unauthorized attacker with network access via port 4307/TCP to the TrueConf server versions 5.3.X to 5.3.9, 5.4.X to 5.4.9, 5.5.X to 5.5.5, and earlier could execute an ar…
CVE-2026-56164US	critical9.8OT critical	1.01% (63rd)	KEV	2026-07-14
Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-59822US	high8.2OT critical	0.84% (58th)	KEV	2026-07-08
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.84.0, LiteLLM's MCP Streamable HTTP endpoint allowed an unauthenticated attacker to…

+4464 more

references (7)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan