CVE-2021-40517
Published: 10 November 2021
Summary
CVE-2021-40517 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Airangel Hsmx-App-25 Firmware. Its CVSS base score is 5.4 (Medium).
Operationally, ranked at the 42.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-27693
Vulnerability details
Airangel HSMX Gateway devices through 5.2.04 is vulnerable to stored Cross Site Scripting. XSS Payload is placed in the name column of the updates table using database access.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.