From 32129a41c9f3f532125dbb3eabd079ec7f10973a Mon Sep 17 00:00:00 2001
From: Christian Krakau-Louis <christian@Christians-Mac-mini-7.local>
Date: Sat, 23 May 2026 00:17:34 +0200
Subject: [PATCH] fix: render dashboard domain rows safely

---
 backend/app/templates/index.html              | 93 ++++++++++++++-----
 .../tests/test_dashboard_template_security.py | 20 ++++
 2 files changed, 91 insertions(+), 22 deletions(-)
 create mode 100644 backend/app/tests/test_dashboard_template_security.py

diff --git a/backend/app/templates/index.html b/backend/app/templates/index.html
index 407949f..c78c8ee 100644
--- a/backend/app/templates/index.html
+++ b/backend/app/templates/index.html
@@ -673,34 +673,83 @@ function dashboardApp() {
             const tableBody = document.getElementById('domains-table-body');
             if (!tableBody) return;
             
-            tableBody.innerHTML = '';
+            tableBody.textContent = '';
             
             domains.forEach(domain => {
                 const row = document.createElement('tr');
                 row.className = 'table-row';
-                
-                row.innerHTML = `
-                    <td class="table-cell">
-                        <div class="font-medium">${domain.domain_name}</div>
-                    </td>
-                    <td class="table-cell">${domain.total_emails || 0}</td>
-                    <td class="table-cell">
-                        <span class="inline-flex items-center rounded-md bg-green-50 dark:bg-green-900/20 px-2 py-1 text-xs font-medium text-green-700 dark:text-green-300">
-                            ${domain.pass_rate || 0}%
-                        </span>
-                    </td>
-                    <td class="table-cell">${domain.failed_count || 0}</td>
-                    <td class="table-cell">${domain.report_count || 0}</td>
-                    <td class="table-cell text-right">
-                        <a href="/domains/${domain.id}" class="btn btn-outline btn-sm">
-                            <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="mr-1"><path d="M3 3v18h18"></path><path d="m19 9-5 5-4-4-3 3"></path></svg>
-                            Details
-                        </a>
-                    </td>
-                `;
-                
+
+                row.appendChild(this.createDomainNameCell(domain.domain_name));
+                row.appendChild(this.createTextCell(this.formatLargeNumber(domain.total_emails || 0)));
+                row.appendChild(this.createPassRateCell(domain.pass_rate || 0));
+                row.appendChild(this.createTextCell(this.formatLargeNumber(domain.failed_count || 0)));
+                row.appendChild(this.createTextCell(this.formatLargeNumber(domain.report_count || 0)));
+                row.appendChild(this.createDetailsCell(domain));
+
                 tableBody.appendChild(row);
             });
+        },
+
+        createDomainNameCell(domainName) {
+            const cell = document.createElement('td');
+            cell.className = 'table-cell';
+
+            const content = document.createElement('div');
+            content.className = 'font-medium';
+            content.textContent = domainName || 'Unknown';
+            cell.appendChild(content);
+
+            return cell;
+        },
+
+        createPassRateCell(passRate) {
+            const cell = document.createElement('td');
+            cell.className = 'table-cell';
+
+            const badge = document.createElement('span');
+            badge.className = 'inline-flex items-center rounded-md bg-green-50 dark:bg-green-900/20 px-2 py-1 text-xs font-medium text-green-700 dark:text-green-300';
+            badge.textContent = `${passRate}%`;
+            cell.appendChild(badge);
+
+            return cell;
+        },
+
+        createDetailsCell(domain) {
+            const cell = document.createElement('td');
+            cell.className = 'table-cell text-right';
+
+            const link = document.createElement('a');
+            link.className = 'btn btn-outline btn-sm';
+            const domainId = String(domain.id ?? domain.domain_name ?? '');
+            link.href = `/domains/${encodeURIComponent(domainId)}`;
+            link.appendChild(this.createDetailsIcon());
+            link.appendChild(document.createTextNode('Details'));
+            cell.appendChild(link);
+
+            return cell;
+        },
+
+        createDetailsIcon() {
+            const svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
+            svg.setAttribute('width', '14');
+            svg.setAttribute('height', '14');
+            svg.setAttribute('viewBox', '0 0 24 24');
+            svg.setAttribute('fill', 'none');
+            svg.setAttribute('stroke', 'currentColor');
+            svg.setAttribute('stroke-width', '2');
+            svg.setAttribute('stroke-linecap', 'round');
+            svg.setAttribute('stroke-linejoin', 'round');
+            svg.setAttribute('class', 'mr-1');
+
+            const axis = document.createElementNS('http://www.w3.org/2000/svg', 'path');
+            axis.setAttribute('d', 'M3 3v18h18');
+            svg.appendChild(axis);
+
+            const trend = document.createElementNS('http://www.w3.org/2000/svg', 'path');
+            trend.setAttribute('d', 'm19 9-5 5-4-4-3 3');
+            svg.appendChild(trend);
+
+            return svg;
         }
     }
 }
diff --git a/backend/app/tests/test_dashboard_template_security.py b/backend/app/tests/test_dashboard_template_security.py
new file mode 100644
index 0000000..595ba6d
--- /dev/null
+++ b/backend/app/tests/test_dashboard_template_security.py
@@ -0,0 +1,20 @@
+from pathlib import Path
+
+
+def test_dashboard_domain_table_uses_safe_dom_rendering():
+    """Domain names and counts come from report data and must not be HTML-rendered."""
+    template = (Path(__file__).resolve().parents[1] / "templates" / "index.html").read_text()
+    populate_start = template.index("populateDomainsTable(domains)")
+    helper_start = template.index("createDomainNameCell(domainName)")
+    populate_body = template[populate_start:helper_start]
+
+    assert "innerHTML" not in populate_body
+    assert ".textContent" in populate_body
+    assert "createDomainNameCell" in populate_body
+    assert "createDetailsCell" in populate_body
+
+
+def test_dashboard_domain_details_links_are_encoded():
+    template = (Path(__file__).resolve().parents[1] / "templates" / "index.html").read_text()
+
+    assert "encodeURIComponent(domainId)" in template