Cyber Resilience

CVE-2025-23912

High

Published: 16 January 2025

Published
16 January 2025
Modified
23 April 2026
KEV Added
—
Patch
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CVSS Score v3.1 8.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
EPSS Score 0.0014 33.3th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-23912 is a high-severity SQL Injection (CWE-89) vulnerability. Its CVSS base score is 8.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 33.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 RA-5 (Vulnerability Monitoring and Scanning) and SI-10 (Information Input Validation).

Deeper analysis

CVE-2025-23912 is an Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability that enables Blind SQL Injection in the WordPress Custom Sidebar plugin (wordpress-custom-sidebar) developed by Philipp Speck. The flaw affects all versions of the plugin from unknown initial release through version 2.3 inclusive.

With a CVSS v3.1 base score of 8.5 (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L), the vulnerability is exploitable over the network with low attack complexity by low-privileged authenticated users, requiring no user interaction. Attackers can achieve high confidentiality impact by extracting sensitive data from the database via blind SQL injection techniques, with changed scope, no integrity impact, and low availability impact.

The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/wordpress-custom-sidebar/vulnerability/wordpress-wordpress-custom-sidebar-plugin-2-3-sql-injection-vulnerability?_s_id=cve details the SQL injection vulnerability in WordPress Custom Sidebar plugin version 2.3 and earlier.

EU & UK References

Vulnerability details

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Philipp Speck WordPress Custom Sidebar wordpress-custom-sidebar allows Blind SQL Injection.This issue affects WordPress Custom Sidebar: from n/a through <= 2.3.

CWE(s)
CWE-89

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1213.006 Databases Collection
Adversaries may leverage databases to mine valuable information.
attack.mitre.org →
Why these techniques?

The SQL injection vulnerability in a public-facing WordPress plugin directly enables exploitation of the web application (T1190) and facilitates extraction of sensitive data from the backend database via blind SQL injection (T1213.006).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2019-25537Shared CWE-89
CVE-2019-25366Shared CWE-89
CVE-2019-25496Shared CWE-89
CVE-2026-1475Shared CWE-89
CVE-2026-26990Shared CWE-89
CVE-2026-44047Shared CWE-89
CVE-2025-12865Shared CWE-89
CVE-2024-11135Shared CWE-89
CVE-2019-25491Shared CWE-89
CVE-2024-13369Shared CWE-89

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly mitigates the SQL injection vulnerability by requiring timely identification, reporting, and patching of the flawed WordPress Custom Sidebar plugin.

SI-10 Information Input Validation good match
prevent

Prevents blind SQL injection by enforcing validation and sanitization of user inputs used in SQL commands within the plugin.

RA-5 Vulnerability Monitoring and Scanning good match
detect

Detects the SQL injection vulnerability in the WordPress Custom Sidebar plugin through regular vulnerability scanning of system components.

References