CVE-2021-42258 | BDVDB-2026-163151 Detail

BQEBillQuick Web Suite

Description#

BQE BillQuick Web Suite 2018 through 2021 before 22.0.9.1 allows SQL injection for unauthenticated remote code execution, as exploited in the wild in October 2021 for ransomware installation. SQL injection can, for example, use the txtID (aka username) parameter. Successful exploitation can include the ability to execute arbitrary code as MSSQLSERVER$ via xp_cmdshell.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

References#

Exploit#

No public exploit known

History#

Version 12021-10-22Record published in the CVE List.
Version 22025-10-21Most recent update recorded in the CVE List.

Published

Published: 2021-10-22
Last modified: 2025-10-21

Vendor information

Vendor: BQE
Product: BillQuick Web Suite

All BQE vulnerabilities

Score

9.8 Critical

EPSS

75.1%, High

Estimated chance of exploitation in the next 30 days. EPSS percentile: 99.5.

KEV

Yes

Listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

SQL Injection

Action

Apply updates per vendor instructions.

Affected Systems

No version data in the source record.

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.8 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).