Cyber Resilience

CVE-2023-28787

Critical

Published: 26 March 2024

Published
26 March 2024
Modified
28 April 2026
KEV Added
Patch
CVSS Score v3.1 9.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
EPSS Score 0.3207 96.9th percentile
Risk Priority 38 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-28787 is a critical-severity SQL Injection (CWE-89) vulnerability. Its CVSS base score is 9.3 (Critical).

Operationally, ranked in the top 3.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

The vulnerability CVE-2023-28787 is an improper neutralization of special elements used in an SQL command, classified under CWE-89, in the ExpressTech Quiz And Survey Master plugin for WordPress. It affects versions from n/a through 8.1.4 and received a CVSS 3.1 score of 9.3 reflecting network attack vector, low complexity, no required privileges or user interaction, changed scope, high confidentiality impact, and low availability impact.

An unauthenticated attacker can exploit the flaw remotely to perform SQL injection, enabling extraction of sensitive data and limited disruption without any prior access or credentials.

Advisories published via Patchstack document the unauthenticated SQL injection in Quiz And Survey Master 8.1.4 and identify the affected plugin versions.

The EPSS score stands at 0.3207 with an identical peak value.

EU & UK References

Vulnerability details

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in ExpressTech Quiz And Survey Master.This issue affects Quiz And Survey Master: from n/a through 8.1.4.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-89

Penetration testing uses SQL injection payloads against database interfaces, identifying and supporting fixes for SQL injection weaknesses.

addresses: CWE-89

Validates query inputs to prevent SQL syntax or command manipulation.

References