CVE-2026-55729: Loytec LWEB802: Exposure of Sensitive Information in browser localStorage

Severity: high (CVSS 7.7 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-24 · updated 2026-10-24
Weakness: CWE-200

Description

Exposure of Sensitive Information (CWE-200) in LWEB802 browser `localStorage` in Loytec LWEB-802 before 5.0.8 on all platforms allows an unauthenticated remote attacker to leak stored management credentials via a crafted link.

Affected products

Loytec LWEB-802: before 5.0.8 — fixed in 5.0.8

How to fix

Upgrade to a fixed version: Loytec LWEB-802 5.0.8. Check the vendor advisory for mitigations.

References

https://www.loytec.com/support/product-security/advisories/8526-dibt-cve-20260601-0001-exposure-of-credentials-stored-in-browser-local-storage-high

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