Cyber Resilience

CVE-2026-32459

High

Published: 13 March 2026

Published
13 March 2026
Modified
22 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 0.0022 12.5th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-32459 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 12.5th 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-2026-32459 is an Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability that enables Blind SQL Injection in the flycart UpsellWP checkout-upsell-and-order-bumps WordPress plugin. The issue affects UpsellWP versions from n/a through 2.2.4 and is classified under CWE-89.

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 can be exploited by low-privileged remote attackers, such as authenticated WordPress users, over the network with low attack complexity and no user interaction required. Exploitation changes the scope and primarily results in high confidentiality impact through data exfiltration via blind SQL injection techniques, alongside low availability impact and no integrity impact.

Mitigation details are provided in the Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/checkout-upsell-and-order-bumps/vulnerability/wordpress-upsellwp-plugin-2-2-4-sql-injection-vulnerability?_s_id=cve.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in flycart UpsellWP checkout-upsell-and-order-bumps allows Blind SQL Injection.This issue affects UpsellWP: from n/a through <= 2.2.4.

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?

SQL injection in public-facing WordPress plugin directly enables T1190 (Exploit Public-Facing Application) for initial access and T1213.006 (Databases) for data exfiltration via blind queries.

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

CVEs Like This One

CVE-2018-25199Shared CWE-89
CVE-2026-27179Shared CWE-89
CVE-2025-0308Shared CWE-89
CVE-2019-25581Shared CWE-89
CVE-2026-27885Shared CWE-89
CVE-2019-25479Shared CWE-89
CVE-2026-1476Shared CWE-89
CVE-2019-25526Shared CWE-89
CVE-2025-69365Shared CWE-89
CVE-2019-25573Shared CWE-89

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly mitigates blind SQL injection by requiring validation and sanitization of user inputs used in SQL commands within the UpsellWP plugin.

SI-2 Flaw Remediation good match
prevent

Ensures timely identification, reporting, and patching of the specific SQL injection flaw in UpsellWP versions through 2.2.4.

RA-5 Vulnerability Monitoring and Scanning good match
preventdetect

Detects the SQL injection vulnerability through regular scanning of the WordPress plugin and hosted applications, enabling remediation before exploitation.

References