CVE-2025-9318Network attack vector

Authenticated data extraction via unprepared is_linking query

Published Jan 6, 2026 · Updated Jan 6, 2026

SQL injection in ExpressTech Systems Quiz and Survey Master 10.3.1 and earlier allows remote authenticated users to read database data. The WordPress REST API handler in php/rest-api.php places the user-controlled is_linking parameter into an existing SQL query without sufficient escaping or preparation, enabling time-based inference. Subscriber-level access is sufficient, and the documented consequence is extraction of sensitive database information rather than data modification or service interruption.

CVSS severity6.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in ExpressTech Systems Quiz and Survey Master 10.3.1 and earlier allows remote authenticated users to read database data. The WordPress REST API handler in php/rest-api.php places the user-controlled is_linking parameter into an existing SQL query without sufficient escaping or preparation, enabling time-based inference. Subscriber-level access is sufficient, and the documented consequence is extraction of sensitive database information rather than data modification or service interruption.

The record

CVE
CVE-2025-9318
Published
Jan 6, 2026
Updated
Jan 6, 2026
Vendor
ExpressTech Systems
Product
Quiz and Survey Master
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 6, 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=* <=10.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ExpressTech Systems · Quiz and Survey Masterversion=* <=10.3.1

Published CVSS scores

6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

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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