Medium severity4.8NVD Advisory· Published Apr 13, 2026· Updated Apr 22, 2026
CVE-2026-2728
CVE-2026-2728
Description
LibreNMS versions before 26.3.0 are affected by an authenticated Cross-site Scripting vulnerability on the showconfig page. Successful exploitation requires administrative privileges. Exploitation could result in XSS attacks being performed against other users with access to the page.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
librenms/librenmsPackagist | >= 25.12.0, < 26.3.0 | 26.3.0 |
Affected products
2Patches
Vulnerability mechanics
References
4- projectblack.io/blog/librenms-authenticated-rce-and-xss/nvdExploitThird Party Advisory
- github.com/advisories/GHSA-5gm9-622f-qcg5ghsaADVISORY
- github.com/librenms/librenms/releases/tag/26.3.0ghsaWEB
- github.com/librenms/librenms/security/advisories/GHSA-5gm9-622f-qcg5ghsaWEB
News mentions
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