CVE-2023-6166Public exploitNetwork attack vector

Reflected script execution via unescaped URL attributes

Published Dec 26, 2023 · Updated Aug 2, 2024

Reflected XSS in AYS Pro Plugins Quiz Maker before 6.4.9.5 allows remote attackers to execute script through a crafted admin-page URL. The plugin inserts generated request URLs into HTML attributes without escaping them, so a query-string payload can terminate an attribute and inject script. Exploitation requires a user to open the crafted URL; the injected script then runs in that user's WordPress origin.

CVSS severity6.1
Medium
EPSS probability0.42%
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 AYS Pro Plugins Quiz Maker before 6.4.9.5 allows remote attackers to execute script through a crafted admin-page URL. The plugin inserts generated request URLs into HTML attributes without escaping them, so a query-string payload can terminate an attribute and inject script. Exploitation requires a user to open the crafted URL; the injected script then runs in that user's WordPress origin.

The record

CVE
CVE-2023-6166
Published
Dec 26, 2023
Updated
Aug 2, 2024
Vendor
AYS Pro Plugins
Product
Quiz Maker
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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 <6.4.9.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

AYS Pro Plugins · Quiz Makerversion=0 <6.4.9.5

Published CVSS scores

6.1NIST NVDCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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