What is CVE-2022-4112?

CVE-2022-4112 is a medium-severity vulnerability in Vms-Studio Quizlord, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 4.8/10. Published 2022-12-19.

How severe is CVE-2022-4112?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2022-4112 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Vms-Studio Quizlord

CVE-2022-4112

The Quizlord WordPress plugin through 2.0 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Published 2022-12-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (43.7th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Vms-Studio Quizlord
Quizlord — versions 0

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/4cbce79d-9b7a-41f5-9c52-08933ea7c28e (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2022-4112?: CVE-2022-4112 is a medium-severity vulnerability in Vms-Studio Quizlord, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 4.8/10. Published 2022-12-19.
How severe is CVE-2022-4112?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2022-4112 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.