Quiz And Survey Master < 7.1.18 - Reflected Cross-Site Scripting (XSS)

published 2021-06-20 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11281

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits: 0; none known

The Quiz And Survey Master – Best Quiz, Exam and Survey Plugin WordPress plugin before 7.1.18 did not sanitise or escape its result_id parameter when displaying an existing quiz result page, leading to a reflected Cross-Site Scripting issue. This could allow for privilege escalation by inducing a logged in admin to open a malicious link

Patch / fix

fixed in 1

expresstech quiz_and_survey_master 7.1.18

Exploit prediction

0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

wpscan.com https://wpscan.com/vulnerability/7f2fda5b-45a5-4fc6-968f-90bc9674c999 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

ExpressTech Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

WordPress rss critical rss

References

wpscan.com /vulnerability/7f2fda5b-45a5-4fc6-968f-90bc9674c999
exploit, third-party-advisory

Sources

CVE List CVE-2021-24368
NVD CVE-2021-24368

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary