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CVE Record

CVE-2021-24368: Quiz And Survey Master < 7.1.18 - Reflected Cross-Site Scripting (XSS)

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

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a reflected XSS flaw in the WordPress Quiz And Survey Master plugin before 7.1.18. A malicious link could run script in an administrator’s browser if they are logged in and open it. The business risk is targeted admin compromise, not broad automatic server takeover based on the provided sources.

Executive priority

Treat as a targeted phishing-enabled WordPress admin risk. Prioritize patching if the plugin is installed, especially on public or business-critical sites. Urgency is moderate because user interaction is required and no active exploitation evidence is cited.

Technical view

The plugin failed to sanitize or escape the result_id parameter when rendering an existing quiz result page, causing CWE-79 reflected XSS. The cited description says this could enable privilege escalation by inducing a logged-in admin to open a malicious link. No CVSS score is provided in the source bundle.

Likely exposure

Exposure is likely limited to WordPress sites running Quiz And Survey Master before 7.1.18. Risk is higher where administrators routinely access quiz result pages or could be targeted with crafted links while authenticated.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires social engineering or another way to get a logged-in administrator to open a malicious link.

Researcher notes

Focus review on result page rendering of result_id and output encoding. The public bundle identifies CWE-79 and privilege escalation potential but does not provide CVSS, exploit maturity, or detailed patch notes beyond versions before 7.1.18.

Mitigation direction

  • Upgrade Quiz And Survey Master to version 7.1.18 or later.
  • Check WPScan or vendor guidance for any additional hardening instructions.
  • Limit WordPress administrator access to trusted users only.
  • Train administrators to avoid unexpected quiz result links.

Validation and detection

  • Inventory WordPress sites using Quiz And Survey Master.
  • Confirm installed plugin versions are 7.1.18 or later.
  • Review logs for unusual quiz result requests containing encoded script-like input.
  • Confirm result pages encode user-controlled parameters after remediation.
Prepared
Confidence
medium
Sources
3

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.

Open ATT&CK lookup
description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-24368 mapping review

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

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
ExpressTechQuiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress7.1.18Listed
Weakness

CWE details

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

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.