diff --git a/src/webui/www/.eslintrc.json b/src/webui/www/.eslintrc.json
deleted file mode 100644
index 69e9d3abf..000000000
--- a/src/webui/www/.eslintrc.json
+++ /dev/null
@@ -1,29 +0,0 @@
-{
-    "env": {
-        "browser": true,
-        "es2022": true
-    },
-    "extends": [
-        "eslint:recommended",
-        "plugin:@stylistic/disable-legacy"
-    ],
-    "plugins": [
-        "html",
-        "@stylistic"
-    ],
-    "rules": {
-        "eqeqeq": "error",
-        "no-undef": "off",
-        "no-unused-vars": "off",
-        "@stylistic/no-mixed-operators": [
-            "error",
-            {
-                "groups": [
-                    ["&", "|", "^", "~", "<<", ">>", ">>>", "==", "!=", "===", "!==", ">", ">=", "<", "<=", "&&", "||", "in", "instanceof"]
-                ]
-            }
-        ],
-        "@stylistic/nonblock-statement-body-position": ["error", "below"],
-        "@stylistic/semi": "error"
-    }
-}
diff --git a/src/webui/www/eslint.config.mjs b/src/webui/www/eslint.config.mjs
new file mode 100644
index 000000000..ba6f91a0d
--- /dev/null
+++ b/src/webui/www/eslint.config.mjs
@@ -0,0 +1,44 @@
+import Globals from 'globals';
+import Html from 'eslint-plugin-html';
+import Js from '@eslint/js';
+import Stylistic from '@stylistic/eslint-plugin';
+import * as RegexpPlugin from 'eslint-plugin-regexp';
+
+export default [
+    Js.configs.recommended,
+    RegexpPlugin.configs["flat/recommended"],
+    Stylistic.configs["disable-legacy"],
+    {
+        files: [
+            "**/*.html",
+            "**/*.js",
+            "**/*.mjs"
+        ],
+        languageOptions: {
+            ecmaVersion: 2022,
+            globals: {
+                ...Globals.browser
+            }
+        },
+        plugins: {
+            Html,
+            RegexpPlugin,
+            Stylistic
+        },
+        rules: {
+            "eqeqeq": "error",
+            "no-undef": "off",
+            "no-unused-vars": "off",
+            "Stylistic/no-mixed-operators": [
+                "error",
+                {
+                    "groups": [
+                        ["&", "|", "^", "~", "<<", ">>", ">>>", "==", "!=", "===", "!==", ">", ">=", "<", "<=", "&&", "||", "in", "instanceof"]
+                    ]
+                }
+            ],
+            "Stylistic/nonblock-statement-body-position": ["error", "below"],
+            "Stylistic/semi": "error"
+        }
+    }
+];
diff --git a/src/webui/www/package.json b/src/webui/www/package.json
index 95e8ad9dc..975a90014 100644
--- a/src/webui/www/package.json
+++ b/src/webui/www/package.json
@@ -12,8 +12,9 @@
   },
   "devDependencies": {
     "@stylistic/eslint-plugin": "*",
-    "eslint": "^8",
-    "eslint-plugin-html": "^8",
+    "eslint": "*",
+    "eslint-plugin-html": "*",
+    "eslint-plugin-regexp": "*",
     "html-validate": "*",
     "i18next-parser": "*",
     "js-beautify": "*",
diff --git a/src/webui/www/private/scripts/client.js b/src/webui/www/private/scripts/client.js
index 5b612aeea..496ca43da 100644
--- a/src/webui/www/private/scripts/client.js
+++ b/src/webui/www/private/scripts/client.js
@@ -1527,8 +1527,8 @@ window.addEventListener("DOMContentLoaded", function() {
                         return lowercaseStr.startsWith("http:")
                             || lowercaseStr.startsWith("https:")
                             || lowercaseStr.startsWith("magnet:")
-                            || ((str.length === 40) && !(/[^0-9A-Fa-f]/.test(str))) // v1 hex-encoded SHA-1 info-hash
-                            || ((str.length === 32) && !(/[^2-7A-Za-z]/.test(str))); // v1 Base32 encoded SHA-1 info-hash
+                            || ((str.length === 40) && !(/[^0-9A-F]/i.test(str))) // v1 hex-encoded SHA-1 info-hash
+                            || ((str.length === 32) && !(/[^2-7A-Z]/i.test(str))); // v1 Base32 encoded SHA-1 info-hash
                     });
 
                 if (urls.length <= 0)
diff --git a/src/webui/www/private/scripts/misc.js b/src/webui/www/private/scripts/misc.js
index 7ca895ae3..529d19e70 100644
--- a/src/webui/www/private/scripts/misc.js
+++ b/src/webui/www/private/scripts/misc.js
@@ -143,7 +143,7 @@ window.qBittorrent.Misc = (function() {
      * JS counterpart of the function in src/misc.cpp
      */
     const parseHtmlLinks = function(text) {
-        const exp = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#/%?=~_|!:,.;]*[-A-Z0-9+&@#/%=~_|])/ig;
+        const exp = /(\b(https?|ftp|file):\/\/[-\w+&@#/%?=~|!:,.;]*[-\w+&@#/%=~|])/gi;
         return text.replace(exp, "<a target='_blank' rel='noopener noreferrer' href='$1'>$1</a>");
     };