CVE detail

CVE-2021-24221 — CVE-2021-24221

Published 2021-04-12 · Modified 2026-06-17 · Vendor expresstech · Product quiz_and_survey_master · Source nvd

HIGH

severity

CVSS-derived band

8.8

CVSS v3

0–10 scale

0.0189

EPSS probability

exploitation probability, 30d

78.0%

EPSS percentile

percentile vs all CVEs

NOT LISTED

CISA KEV

known exploited catalog

Description

The Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress plugin before 7.1.12 did not sanitise the result_id GET parameter on pages with the [qsm_result] shortcode without id attribute, concatenating it in a SQL statement and leading to an SQL injection. The lowest role allowed to use this shortcode in post or pages being author, such user could gain unauthorised access to the DBMS. If the shortcode (without the id attribute) is embed on a public page or post, then unauthenticated users could exploit the injection.

Remediation

No vendor-published fix data in our corpus for this CVE. Check the references below or the vendor's PSIRT / security advisories page.

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.