CVE-2026-12496 — Loytec LINX firmware: Unauthenticated stored XSS in OPC XML-DA server

Description (CNA)

Stored Cross-Site Scripting (CWE-79) in the OPC XML-DA server statistics in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an unauthenticated remote attacker to execute arbitrary JavaScript in an administrator's browser (session hijacking, credential theft, device reconfiguration) via a crafted `User-Agent` header in a `POST /da` request.

Affected (CNA)

Vendor / product	Versions
Loytec / LIP-ME20xC	affected 0 through 8.4.16
Loytec / L-INX	affected 0 through 8.4.16
Loytec / L-GATE	affected 0 through 8.4.16
Loytec / L-ROC	affected 0 through 8.4.16
Loytec / L-IOB	affected 0 through 8.4.16
Loytec / L-DALI	affected 0 through 8.4.16
Loytec / L-VIS	affected 0 through 8.4.16
Loytec / L-PAD	affected 0 through 8.4.16

CWE

CWE-79, CWE-116

References

https://www.loytec.com/support/product-security/advisories/8522-dibt-cve-20260526-0004-unauthenticated-stored-xxs-in-opc-xml-da-server-statistics-high

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.