Is CVE-2026-71274 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-71274?

CVE-2026-71274 has a CVSS v3 severity of HIGH (8.5).

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CVE-2026-71274

Description

OpenBK7231T's CHANNEL_SetLabel() (src/cmnds/cmd_channels.c) stores channel labels received via the MQTT SetChannelLabel command using strdup() with no HTML sanitization. CHANNEL_GetLabel() returns these labels unsanitized, and they are rendered via hprintf255() at 15+ locations in src/httpserver/http_fns.c with no HTML encoding. An attacker with MQTT broker access (commonly unauthenticated in real deployments) can set a channel label containing a <script> payload that executes when any user views the device's web panel.