CVE-2025-22540

Critical

Published: 09 January 2025

Published

09 January 2025

Modified

23 April 2026

KEV Added

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Patch

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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 0.0014 33.3th percentile

Risk Priority 19 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-22540 is a critical-severity SQL Injection (CWE-89) vulnerability. Its CVSS base score is 9.3 (Critical).

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 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2025-22540 is an Improper Neutralization of Special Elements used in an SQL Command vulnerability, enabling Blind SQL Injection (CWE-89), in the seballero Emailing Subscription WordPress plugin (email-suscripcion). Published on 2025-01-09, it affects all versions of the plugin from its initial release through 1.4.1.

The vulnerability carries a CVSS v3.1 base score of 9.3 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L), making it exploitable by unauthenticated remote attackers over the network with low attack complexity and no user interaction required. Exploitation changes the scope and allows high confidentiality impact through data extraction from the database, alongside low availability impact.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/email-suscripcion/vulnerability/wordpress-emailing-subscription-plugin-1-4-1-sql-injection-vulnerability?_s_id=cve.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2025-2818

Vulnerability details

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in seballero Emailing Subscription email-suscripcion allows Blind SQL Injection.This issue affects Emailing Subscription: from n/a through <= 1.4.1.

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 →

Why these techniques?

Direct unauthenticated remote SQL injection in a public-facing WordPress plugin enables exploitation of public-facing applications for initial access and database data extraction.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1