CVE-2022-3562
Published: 20 November 2022
Summary
CVE-2022-3562 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Librenms Librenms. Its CVSS base score is 5.4 (Medium).
Operationally, ranked in the top 0.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
LibreNMS versions prior to 22.10.0 are affected by a stored cross-site scripting vulnerability, CVE-2022-3562, assigned CWE-79. The flaw exists in the web application component and is rated 5.4 under CVSS 3.1 with the vector AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
An authenticated user with limited privileges can supply crafted input that is persisted and later rendered in the browsers of other users, resulting in limited confidentiality and integrity impacts within the affected application context.
The issue was resolved by commit 43cb72549d90e338f902b359a83c23d3cb5a2645 in the librenms repository, and the finding was disclosed through huntr.dev. Upgrading to version 22.10.0 or later applies the corrective change.
The CVE maintains an EPSS score with a current value of 0.8600 and a peak of 0.8715.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-7240
Vulnerability details
Cross-site Scripting (XSS) - Stored in GitHub repository librenms/librenms prior to 22.10.0.
- 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.