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CVE Record

CVE-2022-4211: Chained Quiz <= 1.3.2 - Reflected Cross-Site Scripting via emailf

The Chained Quiz plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'emailf' parameter on the 'chainedquiz_list' page in versions up to, and including, 1.3.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

MediumCVSS 6.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2022-4211 affects the Chained Quiz WordPress plugin up to and including version 1.3.2. An attacker could lure a user into opening a crafted link that runs unwanted script in the user’s browser. This is not a server takeover, but it can support phishing, session abuse, or unauthorized actions in the user context.

Executive priority

Treat this as a moderate web application risk. Prioritize remediation on public WordPress sites, especially those used by staff or authenticated users, because successful exploitation depends on social engineering rather than direct compromise.

Technical view

The issue is reflected cross-site scripting in the emailf parameter on the chainedquiz_list page, caused by insufficient input sanitization and output escaping. It is unauthenticated, network reachable, and requires user interaction. CVSS 3.1 is 6.1 with changed scope and low confidentiality and integrity impact.

Likely exposure

Exposure is limited to WordPress sites running Chained Quiz versions up to and including 1.3.2. The source bundle has inconsistent affected metadata, so confirm plugin installation and version directly in WordPress inventory.

Exploitation context

The CVE is not listed as KEV in the provided bundle, so active exploitation is not established here. A public gist reference is included, indicating public technical awareness, but the vulnerability still requires tricking a user into clicking a malicious link.

Researcher notes

Evidence supports reflected XSS via emailf on chainedquiz_list through version 1.3.2. The provided affected metadata appears incomplete, and the bundle does not prove active exploitation. Avoid assuming impact beyond browser-executed script in a tricked user’s context.

Mitigation direction

  • Identify all WordPress sites using the Chained Quiz plugin.
  • Update Chained Quiz beyond 1.3.2 if vendor guidance confirms a fixed release.
  • If no fixed release is available, disable or remove the plugin.
  • Apply compensating controls for suspicious links targeting affected WordPress admin or quiz pages.

Validation and detection

  • Confirm installed Chained Quiz versions across production and staging sites.
  • Review logs for requests to chainedquiz_list containing the emailf parameter.
  • Check vendor and WordPress plugin guidance for the fixed version or remediation status.
  • Verify remediation in staging using benign reflected-input testing only.
Prepared
Confidence
high
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2022-4211 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.1 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.1CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.1Medium
CVSS 3.1 vector shape for CVE-2022-4211Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
prasunsenChained Quiz0unaffected
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.