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CVE-2021-20792

31
FAUCET Score

CVE-2021-20792 is a cross-site scripting (XSS) vulnerability affecting Quiz And Survey Master versions prior to 7.1.14, allowing remote attackers to inject arbitrary scripts. Rated 6.1 MEDIUM on CVSS, it has a network attack vector, low attack complexity, and requires user interaction, potentially leading to low impact on confidentiality and integrity. There is no evidence of active exploitation, Metasploit modules, or ExploitDB entries, though Nuclei templates exist. Community discussion and media coverage are minimal, indicating low public attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.1.14CPE matchmatch criteria
cpe:2.3:a:expresstech:quiz_and_survey_master:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.38%
Probability of exploitation in next 30 days
EPSS Percentile
87.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Nuclei: CVE-2021-20792 · Sep 29, 2021
This CVE's current EPSS score of 0.0338 is in the 94th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/jp/JVN65388002/index.html
Third Party Advisory
plugins.trac.wordpress.org / changeset
PatchThird Party Advisory
quizandsurveymaster.com
Product
wordpress.org / plugins/quiz-master-next
ProductRelease Notes