{"id":"CVE-2026-12496","state":"PUBLISHED","title":"Loytec LINX firmware: Unauthenticated stored XSS in OPC XML-DA server","description":"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.","publishedAt":"2026-07-24T13:57:24.818Z","updatedAt":"2026-07-24T15:01:17.030Z","severity":{"score":8.7,"label":"High","version":"4.0","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","source":"NCSC.ch"},"assigner":"NCSC.ch","products":["Loytec LIP-ME20xC","Loytec L-INX","Loytec L-GATE","Loytec L-ROC","Loytec L-IOB","Loytec L-DALI","Loytec L-VIS","Loytec 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