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BA-Workflow CVE-2026-113406

| EUVDEUVD-2026-104825 HIGH
SQL Injection (CWE-89)
2026-10-20 twcert GHSA-phjr-x99m-9g8v
8.7
CVSS 4.0 · Vendor: twcert
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain valid low-privilege account
  2. Exploit
    Submit crafted SQL in request parameter
  3. Execution
    Backend executes injected statement
  4. Impact
    Read/modify/delete database contents

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Parameterized queries, prepared statements
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Persistence

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires an authenticated session: the attacker must possess valid credentials for a BA-Workflow account (PR:L), which is the primary limiting factor. Beyond authentication there are no special prerequisites indicated - the description cites no non-default feature, configuration toggle, or deployment mode, and the CVSS vector shows no user interaction (UI:N) and low complexity (AC:L/AT:N), so any authenticated user with network reachability to the application can inject SQL. The main constraints on real-world risk are thus credential requirement and the product's limited deployment base, not technical difficulty.

Impact

This is a credible but second-tier priority. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N) confirms a network-reachable, low-complexity SQL injection requiring only low-level authentication (PR:L) - meaning any legitimate application account can likely trigger it, with no user interaction. Vulnerable-system impact is maximal (VC:H/VI:H/VA:H), consistent with CWE-89 allowing read, modify, and delete of database contents. However, the signals that would elevate this to urgent are absent: no EPSS score was provided, there is no CISA KEV listing, and no public proof-of-concept is referenced - so there is no public exploit identified at time of analysis. The practical risk is therefore gated by two factors working against mass exploitation: an attacker must first hold valid credentials (PR:L), and BA-Workflow is a niche product with a small deployment footprint, making widespread opportunistic scanning unlikely. Net assessment: a real, high-impact flaw for organizations actually running BA-Workflow and worth prompt patching, but not a broad internet-wide emergency. No conflicting signals were found, though the absence of EPSS/KEV/POC data means exploitation likelihood is inferred rather than measured.

Exploit ScenarioDerived

An attacker who holds a valid low-privilege BA-Workflow account (or who has phished/compromised one) sends crafted input through a vulnerable application parameter, injecting arbitrary SQL that the backend executes. This lets them read sensitive workflow and user data and tamper with or delete records across the database. No public exploit code is identified, so an attacker would need to develop the injection payload themselves, though the low attack complexity makes this straightforward for a skilled actor.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 20, 2026

SQL injection in YS-infoware BA-Workflow lets authenticated remote attackers execute arbitrary SQL statements, enabling them to read, modify, and delete database contents. The issue is rated CVSS 8.7 and affects BA-Workflow deployments matching the version-agnostic CPE supplied by TW-CERT; exploitation requires a valid BA-Workflow account, which limits exposure to users who can authenticate. No public exploit code was identified at time of analysis, and the product's limited deployment base makes this a credible but second-tier priority rather than a broadly urgent Internet-wide threat.

RemediationAI

No vendor-released patch identified at time of analysis. Consult the TW-CERT advisories at https://www.twcert.org.tw/en/cp-139-11299-0cbfd-2.html and https://www.twcert.org.tw/tw/cp-132-11298-d9dd5-1.html for vendor guidance, and request a fixed BA-Workflow build or code-level remediation using parameterized queries/prepared statements. Until a fix is available, restrict BA-Workflow access to trusted networks or VPN, enforce strong authentication and audit all authenticated accounts, reduce the database permissions of the account used by BA-Workflow to the minimum required, and deploy SQL injection detection or WAF rules while monitoring database logs for anomalous queries. These are compensating controls only: network restriction reduces exposure but limits remote access, database least privilege may break legitimate application functions and must be tested, and WAF or logging will not eliminate the underlying injection flaw.

Affected VersionsENISA

BA-Workflow 0 <3.6

Affected Packages

euvd ba_workflow fix: 3.6

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

BA-Workflow is a web-based workflow application from YS-infoware. The flaw is CWE-89, Improper Neutralization of Special Elements used in an SQL Command, meaning user-controlled input reaches SQL query construction without adequate parameterization or escaping. The supplied CPE, cpe:2.3:a:ys-infoware:ba-workflow:*:*:*:*:*:*:*:*, is version-agnostic, so all BA-Workflow releases should be treated as potentially affected unless the vendor confirms otherwise. Both the reported CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N) and the independent CVSS 3.1 assessment (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) agree that an authenticated low-privileged attacker with network access can achieve high confidentiality, integrity, and availability impact through arbitrary SQL execution under the application's database privileges.

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Severity by source

Vendor (twcert) PRIMARY 8.7 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
vuln.today AI 8.8 HIGH

Network-reachable SQLi exploitable by any authenticated user with low complexity and no interaction (PR:L), yielding full read/modify/delete database impact (C:H/I:H/A:H), scope unchanged.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (twcert).

CVSS VectorVendor: twcert

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
High
Vulnerable system: Availability
High
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
Patch available
Oct 20, 2026 - 09:16 EUVD
CVE Published
Oct 20, 2026 - 07:20 cve.org
HIGH 8.7

DescriptionCVE.org

BA-Workflow developed by YS-infoware has a SQL Injection vulnerability. Authenticated remote attackers can inject arbitrary SQL statements to read, modify, and delete database contents.

Executive ViewAI

Why It Matters

YS-infoware BA-Workflow exposes organizations to a high-severity database manipulation risk that could affect the confidentiality and integrity of workflow data in affected deployments. No vendor-released patch is identified at time of analysis and no public exploit identified at time of analysis, so the immediate priority is targeted exposure reduction and monitoring rather than enterprise-wide emergency action. Leadership should care because affected business teams may face data integrity and availability concerns, though the product's limited deployment base reduces broad organizational urgency.

Business Impact: Medium
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations include restricting network access to BA-Workflow, deploying WAF SQL-injection virtual patching, enforcing least-privilege database accounts, enabling database query monitoring and alerting, reviewing BA-Workflow accounts and permissions, and engaging the vendor for patch timeline and interim guidance.

Threat Intelligence Overview

EPSS Score
0.4%
Top 70% exploitable
Prevalence
Low
niche Taiwanese vendor workflow product, limited enterprise footprint
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
Medium
Technical Impact
Total

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.

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