Vulnerability Database

328,409

Total vulnerabilities in the database

CVE-2023-23372

A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to inject malicious code via a network.

We have already fixed the vulnerability in the following versions: QTS 5.0.1.2425 build 20230609 and later QTS 5.1.0.2444 build 20230629 and later QTS 4.5.4.2467 build 20230718 and later QuTS hero h5.1.0.2424 build 20230609 and later QuTS hero h5.0.1.2515 build 20230907 and later QuTS hero h4.5.4.2476 build 20230728 and later

  • Published: Dec 8, 2023
  • Updated: Nov 16, 2025
  • CVE: CVE-2023-23372
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.5
  • AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Software From Fixed in
qnap / qts 5.1.0.2348-build_20230325 5.1.0.2348-build_20230325.x
qnap / qts 5.1.0.2418-build_20230603 5.1.0.2418-build_20230603.x
qnap / qts 5.1.0.2399-build_20230515 5.1.0.2399-build_20230515.x
qnap / qts 5.0.1.2346-build_20230322 5.0.1.2346-build_20230322.x
qnap / qts 5.0.1.2277-build_20230112 5.0.1.2277-build_20230112.x
qnap / qts 5.0.1.2248-build_20221215 5.0.1.2248-build_20221215.x
qnap / qts 5.0.1.2234-build_20221201 5.0.1.2234-build_20221201.x
qnap / qts 5.0.1.2194-build_20221022 5.0.1.2194-build_20221022.x
qnap / qts 5.0.1.2173-build_20221001 5.0.1.2173-build_20221001.x
qnap / qts 5.0.1.2145-build_20220903 5.0.1.2145-build_20220903.x
qnap / qts 5.0.1.2137-build_20220826 5.0.1.2137-build_20220826.x
qnap / qts 5.0.1.2131-build_20220820 5.0.1.2131-build_20220820.x
qnap / qts 5.0.1.2079-build_20220629 5.0.1.2079-build_20220629.x
qnap / qts 5.0.1.2034-build_20220515 5.0.1.2034-build_20220515.x
qnap / qts 5.0.1.2376-build_20230421 5.0.1.2376-build_20230421.x
qnap / qts 4.5.4.2280-build_20230112 4.5.4.2280-build_20230112.x
qnap / qts 4.5.4.2117-build_20220802 4.5.4.2117-build_20220802.x
qnap / qts 4.5.4.2012-build_20220419 4.5.4.2012-build_20220419.x
qnap / qts 4.5.4.1931-build_20220128 4.5.4.1931-build_20220128.x
qnap / qts 4.5.4.1800-build_20210923 4.5.4.1800-build_20210923.x
qnap / qts 4.5.4.1787-build_20210910 4.5.4.1787-build_20210910.x
qnap / qts 4.5.4.1741-build_20210726 4.5.4.1741-build_20210726.x
qnap / qts 4.5.4.1723-build_20210708 4.5.4.1723-build_20210708.x
qnap / qts 4.5.4.1715-build_20210630 4.5.4.1715-build_20210630.x
qnap / qts 4.5.4.1892-build_20211223 4.5.4.1892-build_20211223.x
qnap / qts 4.5.4.2374-build_20230416 4.5.4.2374-build_20230416.x
qnap / quts_hero h5.1.0.2409-build_20230525 h5.1.0.2409-build_20230525.x
qnap / quts_hero h5.0.1.2348-build_20230324 h5.0.1.2348-build_20230324.x
qnap / quts_hero h5.0.1.2277-build_20230112 h5.0.1.2277-build_20230112.x
qnap / quts_hero h5.0.1.2269-build_20230104 h5.0.1.2269-build_20230104.x
qnap / quts_hero h5.0.1.2248-build_20221215 h5.0.1.2248-build_20221215.x
qnap / quts_hero h5.0.1.2192-build_20221020 h5.0.1.2192-build_20221020.x
qnap / quts_hero h5.0.1.2045-build_20220526 h5.0.1.2045-build_20220526.x
qnap / quts_hero h5.0.1.2376-build_20230421 h5.0.1.2376-build_20230421.x
qnap / quts_hero h4.5.4.2272-build_20230105 h4.5.4.2272-build_20230105.x
qnap / quts_hero h4.5.4.2217-build_20221111 h4.5.4.2217-build_20221111.x
qnap / quts_hero h4.5.4.2138-build_20220824 h4.5.4.2138-build_20220824.x
qnap / quts_hero h4.5.4.2052-build_20220530 h4.5.4.2052-build_20220530.x
qnap / quts_hero h4.5.4.1991-build_20220330 h4.5.4.1991-build_20220330.x
qnap / quts_hero h4.5.4.1971-build_20220310 h4.5.4.1971-build_20220310.x
qnap / quts_hero h4.5.4.1951-build_20220218 h4.5.4.1951-build_20220218.x
qnap / quts_hero h4.5.4.1892-build_20211223 h4.5.4.1892-build_20211223.x
qnap / quts_hero h4.5.4.1848-build_20211109 h4.5.4.1848-build_20211109.x
qnap / quts_hero h4.5.4.1813-build_20211006 h4.5.4.1813-build_20211006.x
qnap / quts_hero h4.5.4.1800-build_20210923 h4.5.4.1800-build_20210923.x
qnap / quts_hero h4.5.4.1771-build_20210825 h4.5.4.1771-build_20210825.x
qnap / quts_hero h4.5.4.2374-build_20230417 h4.5.4.2374-build_20230417.x

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.