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CVE-2026-55730

HIGH
8.7
CVSS 4.0
Description
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.

Metadata

CVE ID
CVE-2026-55730
State
PUBLISHED
Assigner
NCSC.ch
Reserved
2026-06-17 09:48 UTC
Published
2026-07-24 14:00 UTC
Last updated
2026-07-24 14:54 UTC
Primary CWE
CWE-79
CWE-79 Improper neutralization of input during web page gene…
Vendor / Product
Loytec / LWEB-802
Sources
cve.org  ·  NVD

Severity & Metrics

8.7 HIGH CVSS 4.0
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
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
Loytec LWEB-802 — 0 < 5.0.8
Weakness (CWE)
CWESourceDescription
CWE-116 cna CWE-116 Improper encoding or escaping of output
CWE-79 cna CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')
CVSS scores (1)
ScoreSeverityVersionSourceVector
8.7 HIGH 4.0 cna 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
References (1)
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