CVE-2022-4213Network attack vector

Reflected script execution via unescaped dn parameter

Published Dec 2, 2022 · Updated Apr 8, 2026

Reflected XSS in Prasunsen Chained Quiz 1.3.2.2 and earlier allows remote attackers to execute scripts through a crafted dn parameter. The chainedquiz_list page inserts the dn query value into generated HTML without sufficient output escaping or prior sanitization. Exploitation is unauthenticated but requires a user to follow an attacker-controlled link, causing the script to run in that user's WordPress-site session.

CVSS severity6.1
Medium
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Prasunsen Chained Quiz 1.3.2.2 and earlier allows remote attackers to execute scripts through a crafted dn parameter. The chainedquiz_list page inserts the dn query value into generated HTML without sufficient output escaping or prior sanitization. Exploitation is unauthenticated but requires a user to follow an attacker-controlled link, causing the script to run in that user's WordPress-site session.

The record

CVE
CVE-2022-4213
Published
Dec 2, 2022
Updated
Apr 8, 2026
Vendor
Prasunsen
Product
Chained Quiz
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 2, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.3.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Prasunsen · Chained Quizversion=0 <=1.3.2.2

Published CVSS scores

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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