diff --git a/force-app/main/default/classes/UTIL_Typeahead.cls b/force-app/main/default/classes/UTIL_Typeahead.cls
index e98f893b59..4123b714a5 100644
--- a/force-app/main/default/classes/UTIL_Typeahead.cls
+++ b/force-app/main/default/classes/UTIL_Typeahead.cls
@@ -35,6 +35,36 @@
 */
 public with sharing class UTIL_Typeahead {
 
+    /*******************************************************************************************************
+    * @description Allow-list pattern for filterClause: one or more "field operator literal" comparisons
+    * joined by AND/OR. Quoted literals cannot contain a single quote, so a caller cannot break out of the
+    * literal to inject additional SOSL/SOQL syntax.
+    ********************************************************************************************************/
+    private static final Pattern FILTER_CLAUSE_PATTERN = Pattern.compile(
+        '(?i)^\\s*[a-z_][a-z0-9_]*\\s*(=|!=|<>|<=|>=|<|>|like)\\s*(\'[^\']*\'|-?\\d+(\\.\\d+)?|true|false|null)' +
+        '(\\s+(and|or)\\s+[a-z_][a-z0-9_]*\\s*(=|!=|<>|<=|>=|<|>|like)\\s*(\'[^\']*\'|-?\\d+(\\.\\d+)?|true|false|null))*\\s*$'
+    );
+
+    private static final Pattern FILTER_CLAUSE_SPLIT = Pattern.compile('(?i)\\s+(?:and|or)\\s+');
+    private static final Pattern FILTER_FIELD_TOKEN = Pattern.compile('(?i)^\\s*([a-z_][a-z0-9_]*)\\s*(?:=|!=|<>|<=|>=|<|>|like)');
+
+    public class InvalidFilterClauseException extends Exception {}
+
+    /*******************************************************************************************************
+    * @description Confirms every field referenced in an already syntax-validated filterClause actually
+    * exists on sObjectName, using the same describe-driven validation UTIL_Where/UTIL_Describe use
+    * elsewhere for dynamic SOQL. Guards against field names that are syntactically valid but bogus.
+    ********************************************************************************************************/
+    private static Boolean allFilterClauseFieldsAreValid(String filterClause, String sObjectName) {
+        for (String clause : FILTER_CLAUSE_SPLIT.split(filterClause)) {
+            Matcher fieldMatcher = FILTER_FIELD_TOKEN.matcher(clause);
+            if (!fieldMatcher.find() || !UTIL_Describe.isValidField(sObjectName, fieldMatcher.group(1))) {
+                return false;
+            }
+        }
+        return true;
+    }
+
     /*******************************************************************************************************
     * @description Searches the database (using SOSL) for the records that meet the criteria.
     * @param queryString (SearchQuery) The word of phrase to search for.
@@ -69,9 +99,14 @@ public with sharing class UTIL_Typeahead {
 	    String sLimit = (recordLimit == null || recordLimit == 0 || recordLimit >= 2000) ? '' : 
 	        ( ' LIMIT ' + String.valueOf(recordLimit));
 	    
-	    // can't escape the filter clause
-	    String sWhere = (filterClause == null || filterClause == '') ? '' : 
-	        ( ' WHERE ' + filterClause );
+	    String sWhere = '';
+	    if (filterClause != null && filterClause != '') {
+	        if (!FILTER_CLAUSE_PATTERN.matcher(filterClause).matches() ||
+	            !allFilterClauseFieldsAreValid(filterClause, sObjectName)) {
+	            throw new InvalidFilterClauseException('Invalid filterClause.');
+	        }
+	        sWhere = ' WHERE ' + filterClause;
+	    }
 	
 	    list<list<sObject>> results = Search.query(
 	        'FIND \'' + sQuery + '*\'' + sInFields + 
diff --git a/force-app/main/default/classes/UTIL_Typeahead_TEST.cls b/force-app/main/default/classes/UTIL_Typeahead_TEST.cls
index 6bdd39311f..e4a1ab4374 100644
--- a/force-app/main/default/classes/UTIL_Typeahead_TEST.cls
+++ b/force-app/main/default/classes/UTIL_Typeahead_TEST.cls
@@ -56,4 +56,45 @@ public with sharing class UTIL_Typeahead_TEST {
 	    system.assertEquals('Test Account', accts[0].get('Name'));
 	    system.assertEquals('Another Account', accts[1].get('Name'));
     }
+
+    private static testMethod void testValidFilterClauseIsAccepted() {
+	    Test.setFixedSearchResults(new list<Id>());
+
+	    Test.startTest();
+	    list<sObject> accts = UTIL_Typeahead.searchRecords(
+	        'test', 'Account', null, null, 'Name = \'Test Account\' AND BillingCity = \'Test City\'', 'Id', null
+	    );
+	    Test.stopTest();
+
+	    system.assertEquals(0, accts.size());
+    }
+
+    private static testMethod void testNonexistentFieldInFilterClauseIsRejected() {
+	    Boolean threwException = false;
+
+	    try {
+	        UTIL_Typeahead.searchRecords(
+	            'test', 'Account', null, null, 'NotARealField__c = \'x\'', 'Id', null
+	        );
+	    } catch (UTIL_Typeahead.InvalidFilterClauseException e) {
+	        threwException = true;
+	    }
+
+	    system.assertEquals(true, threwException, 'A filterClause referencing a nonexistent field should be rejected.');
+    }
+
+    private static testMethod void testInjectedFilterClauseIsRejected() {
+	    Boolean threwException = false;
+
+	    try {
+	        UTIL_Typeahead.searchRecords(
+	            'test', 'Account', null, null,
+	            'Name = \'\' OR Name LIKE \'%\') RETURNING Contact(Id) --', 'Id', null
+	        );
+	    } catch (UTIL_Typeahead.InvalidFilterClauseException e) {
+	        threwException = true;
+	    }
+
+	    system.assertEquals(true, threwException, 'An unsafe filterClause should be rejected.');
+    }
 }
\ No newline at end of file
diff --git a/force-app/main/default/pages/STG_PanelHome.page b/force-app/main/default/pages/STG_PanelHome.page
index 82b92c5125..02da705801 100644
--- a/force-app/main/default/pages/STG_PanelHome.page
+++ b/force-app/main/default/pages/STG_PanelHome.page
@@ -13,7 +13,7 @@
             </div>
         </div>
     </div>
-    <div class="slds-grid">
+    <div class="slds-grid slds-wrap">
         <div class="slds-col_padded slds-size_4-of-12">
             <div class="slds-text-heading_medium slds-m-bottom_medium">
                 {!$Label.stgTools}
diff --git a/force-app/main/default/pages/STG_PanelRelReciprocal.page b/force-app/main/default/pages/STG_PanelRelReciprocal.page
index 1a6009f469..24b61eb59a 100644
--- a/force-app/main/default/pages/STG_PanelRelReciprocal.page
+++ b/force-app/main/default/pages/STG_PanelRelReciprocal.page
@@ -79,6 +79,7 @@
                     </div>
                 </div>
             </apex:outputPanel>
+            <div class="slds-scrollable_x">
             <table class="slds-table slds-table_bordered">
                 <thead>
                     <tr class="slds-text-heading_label">
@@ -125,5 +126,6 @@
                     </apex:repeat>
                 </tbody>
             </table>
+            </div>
     </apex:form>
 </apex:page>
\ No newline at end of file
diff --git a/force-app/main/default/pages/STG_SettingsManager.page b/force-app/main/default/pages/STG_SettingsManager.page
index bae297de16..ac56ea94a1 100644
--- a/force-app/main/default/pages/STG_SettingsManager.page
+++ b/force-app/main/default/pages/STG_SettingsManager.page
@@ -44,6 +44,12 @@
     .hide {
         display: none;
     }
+
+    /* Contain horizontal overflow of wide panels to the content column so the sidebar and headings don't scroll with it (WCAG Reflow) */
+    .slds .content {
+        min-width: 0;
+        overflow-x: auto;
+    }
 </style>
 
 <script>