CVE-2026-55730

Loytec LWEB802: Reflected Cross-Site Scripting in LWEB802

Published Jul 24, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Update to LWEB-802 version 5.0.8.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Loytec
Loytec lweb-802
Vendors & Products Loytec
Loytec lweb-802
Type Values Removed Values Added
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.
Title Loytec LWEB802: Reflected Cross-Site Scripting in LWEB802
Weaknesses CWE-116
CWE-79
References
Metrics cvssV4_0

{'score': 8.7, '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'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
NCSC.ch
Published
Updated
Jul 24, 2026, 2:54 PM
Reserved
Jun 17, 2026, 9:48 AM
Status
Deferred
Published
Jul 24, 2026, 3:18 PM
Modified
Oct 24, 2026, 1:10 PM