CVEvulnerability

CVE-2021-42258

9.8 CRITICAL Known exploited Published 2021-10-22 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

BQE BillQuick Web Suite SQL Injection Vulnerability — BQE BillQuick Web Suite

BQE BillQuick Web Suite contains an SQL injection vulnerability when accessing the username parameter that may allow for unauthenticated, remote code execution.

Added to KEV
2021-11-03
Remediation due
2021-11-17
Ransomware use
Known
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-42258
Status
Analyzed
Published
2021-10-22
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-89

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.

Affected configurations

• bqe billquick web suite (>= 19 < 22.0.9.1)

Related

Weakness · CWE (1)

  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command weakness

Referenced by CWE · observed example (1)

  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command weakness

References