VULNERABILITY INTELLIGENCE

CVE-2021-42258

CVSS score9.8 CRITICAL

EPSS probability75.18%

CISA KEVKnown exploited vulnerability

Published2021-10-22

Last modified2026-06-17

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

Known Exploited Vulnerability

BQE BillQuick Web Suite SQL Injection Vulnerability

Vendor / product: BQE / BillQuick 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.

Weakness classification

nvd@nist.gov: CWE-89
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-89

Primary references

cve@mitre.org — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource