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ALT-PU-2026-19084: package `domoticz` update to version 2026.4-alt3

Domoticz is a free, open source home automation system for Linux, Windows, macOS, and Raspberry Pi. Prior to 2026.3, the `udevices` JSON command handler, `Cmd_UpdateDevices` in `main/WebServerCmds.cpp`, performed no `session.rights` check before invoking a Lua parser script, while its sibling command handlers gate access by role. A low-privilege authenticated user could trigger execution of an existing operator-installed Lua parser script with attacker-controlled input through the `GET /json.htm` endpoint with `type=command` and `param=udevices`. The `script` parameter also lacked a `..` path-traversal guard: `CLuaHandler::executeLuaScript` in `main/LuaHandler.cpp` constructed the filename from the parser directory and the supplied script name before passing it to `luaL_loadfile`. Execution is limited to already-installed valid Lua files; this is not arbitrary code execution, and the advisory states that file-write and upload paths require administrator privileges. This issue is add...

Domoticz is a free, open source home automation system for Linux, Windows, macOS, and Raspberry Pi. Prior to 2026.3, the `udevices` JSON command handler, `Cmd_UpdateDevices` in `main/WebServerCmds.cpp`, performed no `session.rights` check before invoking a Lua parser script, while its sibling command handlers gate access by role. A low-privilege authenticated user could trigger execution of an existing operator-installed Lua parser script with attacker-controlled input through the `GET /json.htm` endpoint with `type=command` and `param=udevices`. The `script` parameter also lacked a `..` path-traversal guard: `CLuaHandler::executeLuaScript` in `main/LuaHandler.cpp` constructed the filename from the parser directory and the supplied script name before passing it to `luaL_loadfile`. Execution is limited to already-installed valid Lua files; this is not arbitrary code execution, and the advisory states that file-write and upload paths require administrator privileges. This issue is addres

Domoticz is a free, open source home automation system for Linux, Wind ...

Domoticz versions prior to 2026.1 contain a stored cross-site scripting vulnerability in the Add Hardware and rename device functionality of the web interface that allows authenticated administrators to execute arbitrary scripts by supplying crafted names containing script or HTML markup. Attackers can inject malicious code that is stored and rendered without proper output encoding, causing script execution in the browsers of users viewing the affected page and enabling unauthorized actions within their session context.

Domoticz versions prior to 2026.1 contain a stored cross-site scripting vulnerability in the Add Hardware and rename device functionality of the web interface that allows authenticated administrators to execute arbitrary scripts by supplying crafted names containing script or HTML markup. Attackers can inject malicious code that is stored and rendered without proper output encoding, causing script execution in the browsers of users viewing the affected page and enabling unauthorized actions within their session context.

Domoticz versions prior to 2026.1 contain a stored cross-site scriptin ...

Domoticz versions prior to 2026.1 contain a stored cross-site scripting vulnerability in the Add Hardware and rename device functionality of the web interface that allows authenticated administrators to execute arbitrary scripts by supplying crafted names containing script or HTML markup. Attackers can inject malicious code that is stored and rendered without proper output encoding, causing script execution in the browsers of users viewing the affected page and enabling unauthorized actions within their session context.