CVE-2022-40698Network attack vector

Stored script execution via unsanitized content

Published Nov 18, 2022 · Updated Apr 28, 2026

Stored XSS in ExpressTech Systems Quiz and Survey Master 7.3.10 and earlier allows remote authenticated users to execute scripts in viewers' browsers. The plugin stores attacker-supplied content without sufficient input sanitization and renders it without sufficient output escaping; public advisories do not identify the exact parameter or function. Subscriber-level access is sufficient, and unauthenticated submission is possible when Require User Login is disabled, causing script execution when a user opens the injected page.

CVSS severity6.1
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in ExpressTech Systems Quiz and Survey Master 7.3.10 and earlier allows remote authenticated users to execute scripts in viewers' browsers. The plugin stores attacker-supplied content without sufficient input sanitization and renders it without sufficient output escaping; public advisories do not identify the exact parameter or function. Subscriber-level access is sufficient, and unauthenticated submission is possible when Require User Login is disabled, causing script execution when a user opens the injected page.

The record

CVE
CVE-2022-40698
Published
Nov 18, 2022
Updated
Apr 28, 2026
Vendor
ExpressTech Systems
Product
Quiz and Survey Master
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 18, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=<= 7.3.10 <=7.3.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ExpressTech Systems · Quiz and Survey Masterversion=<= 7.3.10 <=7.3.10

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.4PatchstackCVSS:3.1/AV:N/AC:L/PR:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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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