CVE-2026-40457

2.1 lowEPSS 0.3%

Low (2.1). EPSS 0.3% chance of exploitation in the next 30 days.

A Reflected Cross-Site Scripting (XSS) vulnerability exists in LMS (LAN Management System) before commit 9c5651b in the "dbrecover.php" and "netremap.php" modules where unsanitized GET parameters are directly embedded into HTML output. This allows an attacker to inject arbitrary JavaScript when an authenticated user clicks a crafted link, provided the required conditions (such as a network defined in the system) are met.

Severity

CVSS 4.0

2.1 low

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-06-18
Modified: 2026-06-22
Record from: the NVD, synced 2026-10-19

References

https://cert.pl/posts/2026/06/CVE-2026-40455
https://github.com/chilek/lms/commit/9c5651b39bfd086cc34fc9a78ddaa8c0815af114
https://lms.org.pl/

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