CVE-2026-4815

High

Published: 25 March 2026

Published

25 March 2026

Modified

26 March 2026

KEV Added

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Patch

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CVSS Score 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0004 11.7th percentile

Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-4815 is a high-severity SQL Injection (CWE-89) vulnerability in Schiocco Support Board. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 11.7th 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).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 3 other techniques. 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

SI-10 directly prevents SQL injection by requiring validation of untrusted inputs like the 'calls[0][message_ids][]' parameter before database queries.

SI-2 Flaw Remediation good match

prevent

SI-2 mandates timely remediation of known flaws such as CVE-2026-4815 through patching Support Board to version 3.7.8 or later.

SI-9 Information Input Restrictions good match

prevent

SI-9 restricts the vulnerable 'message_ids' parameter to authorized types, lengths, and formats, such as numeric IDs only, blocking SQL injection payloads.

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 →

T1565.001 Stored Data Manipulation Impact

Adversaries may insert, delete, or manipulate data at rest in order to influence external outcomes or hide activity, thus threatening the integrity of the data.

attack.mitre.org →

T1485 Data Destruction Impact

Adversaries may destroy data and files on specific systems or in large numbers on a network to interrupt availability to systems, services, and network resources.

attack.mitre.org →

Why these techniques?

SQL injection in web app endpoint directly enables T1190 (public-facing app exploitation), T1213.006 (DB content retrieval), T1565.001 (stored data insert/update), and T1485 (data deletion/destruction).

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

NVD Description

A SQL Injection vulnerability has been found in Support Board v3.7.7. This vulnerability allows an attacker to retrieve, create, update and delete database via 'calls[0][message_ids][]' parameter in '/supportboard/include/ajax.php' endpoint.

Deeper analysisAI

CVE-2026-4815 is a SQL injection vulnerability (CWE-89) in Support Board version 3.7.7. The issue affects the 'calls[0][message_ids][]' parameter in the '/supportboard/include/ajax.php' endpoint, allowing attackers to retrieve, create, update, and delete database content. Published on 2026-03-25, it carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), reflecting high severity due to its potential for significant data manipulation.

An attacker with low privileges, such as an authenticated user, can exploit this vulnerability remotely over the network with low complexity and no user interaction required. Successful exploitation grants high-impact control over confidentiality, integrity, and availability, enabling arbitrary database operations like data exfiltration, modification, insertion, or deletion.

The INCIBE-CERT advisory at https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-support-board-schiocco details this and other vulnerabilities in Support Board by Schiocco, providing guidance on mitigations.