CVE-2026-28562

HighPublic PoC

Published: 28 February 2026

Published

28 February 2026

Modified

05 March 2026

KEV Added

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Patch

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CVSS Score 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

EPSS Score 0.0001 2.5th percentile

Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-28562 is a high-severity SQL Injection (CWE-89) vulnerability in Gvectors Wpforo Forum. Its CVSS base score is 8.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 2.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

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

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Directly mitigates SQL injection by requiring validation and sanitization of user inputs like the wpfob parameter in wpForo Topics::get_topics().

SI-2 Flaw Remediation good match

prevent

Ensures timely identification, reporting, and patching of flaws such as the ineffective esc_sql() sanitization in wpForo 2.4.14.

RA-5 Vulnerability Monitoring and Scanning good match

detect

Requires vulnerability scanning that identifies SQL injection issues like CVE-2026-28562 in WordPress plugins for remediation.

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?

Unauthenticated SQLi in public-facing WP plugin directly enables T1190 exploitation for blind boolean-based DB data/credential extraction, mapping to T1213.006.

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

NVD Description

wpForo 2.4.14 contains an unauthenticated SQL injection vulnerability in Topics::get_topics() where the ORDER BY clause relies on ineffective esc_sql() sanitization on unquoted identifiers. Attackers exploit the wpfob parameter with CASE WHEN payloads to perform blind boolean extraction of credentials from…

the WordPress database.

Deeper analysisAI

CVE-2026-28562 is an unauthenticated SQL injection vulnerability in wpForo 2.4.14, a WordPress forum plugin. The flaw exists in the Topics::get_topics() function, where the ORDER BY clause relies on ineffective esc_sql() sanitization for unquoted identifiers controlled by the wpfob parameter. This allows attackers to inject malicious SQL payloads, classified under CWE-89, with a CVSS v3.1 base score of 8.2 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N).

Unauthenticated attackers can exploit this vulnerability over the network with low complexity and no user interaction required. By supplying CASE WHEN payloads in the wpfob parameter, they can conduct blind boolean-based extraction of credentials and other sensitive data from the WordPress database, resulting in high confidentiality impact and low integrity impact, but no availability disruption.

Advisories, including the VulnCheck report at https://www.vulncheck.com/advisories/wpforo-sql-injection-via-topics-order-by-parameter, provide further details on the issue. The wpForo plugin pages at https://wordpress.org/plugins/wpforo/ and https://wordpress.org/plugins/wpforo/#developers offer additional resources for developers and users.