CVE-2026-55730CWE-116CWE-79

Loytec LWEB802: Reflected Cross-Site Scripting in LWEB802

High · published July 24, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
48.3
In the wild
Unconfirmed
What it is

Reflected Cross-Site Scripting (CWE-79) in LWEB802 in Loytec LWEB-802 before 5.0.8 on all platforms allows an unauthenticated remote attacker to execute arbitrary JavaScript in a victim's browser and perform actions with the victim's privileges via a crafted link containing a malicious `project` or `mspParams` parameter.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00606 · 48.3th percentile
Weaknesses
CWE-116 · Improper Encoding or Escaping of Output; CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-24T14:00Z
EPSS history
Timeline
  • 24 JUL 14:00Z
    Loytec LWEB802: Reflected Cross-Site Scripting in LWEB802
    cvelistv5