diff --git a/maigret/report.py b/maigret/report.py
index 5f9d297..35263d6 100644
--- a/maigret/report.py
+++ b/maigret/report.py
@@ -436,7 +436,9 @@ def generate_report_template(is_pdf: bool):
         template_content = get_resource_content("simple_report.tpl")
         css_content = None
 
-    template = Template(template_content)
+    # autoescape: report data comes from scanned profiles and must be escaped
+    # to avoid XSS in the generated report.
+    template = Template(template_content, autoescape=True)
     template.globals["title"] = CaseConverter.snake_to_title  # type: ignore
     template.globals["detect_link"] = enrich_link_str  # type: ignore
     return template, css_content
diff --git a/maigret/utils.py b/maigret/utils.py
index 6e5d311..10b9926 100644
--- a/maigret/utils.py
+++ b/maigret/utils.py
@@ -6,6 +6,8 @@ import random
 import string
 from typing import Any
 
+from markupsafe import Markup, escape
+
 
 DEFAULT_USER_AGENTS = [
     "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36",
@@ -38,7 +40,10 @@ def is_country_tag(tag: str) -> bool:
 def enrich_link_str(link: str) -> str:
     link = link.strip()
     if link.startswith("www.") or (link.startswith("http") and "//" in link):
-        return f'<a class="auto-link" href="{link}">{link}</a>'
+        # escape the link to avoid XSS; Markup keeps the <a> tag itself intact
+        # under the template's autoescaping.
+        safe = escape(link)
+        return Markup(f'<a class="auto-link" href="{safe}">{safe}</a>')
     return link
 
 
diff --git a/tests/test_report.py b/tests/test_report.py
index 22f1677..ed09558 100644
--- a/tests/test_report.py
+++ b/tests/test_report.py
@@ -11,6 +11,7 @@ from io import StringIO
 
 import xmind  # type: ignore[import-untyped]
 from jinja2 import Template
+from markupsafe import escape
 
 from maigret.report import (
     filter_supposed_data,
@@ -416,11 +417,101 @@ def test_html_report():
 
     report_text = open(report_name).read()
 
-    assert SUPPOSED_BRIEF in report_text
+    # the HTML report escapes its context, so the brief is rendered with
+    # HTML entities (e.g. the apostrophe in "target's")
+    assert str(escape(SUPPOSED_BRIEF)) in report_text
     assert SUPPOSED_GEO in report_text
     assert SUPPOSED_INTERESTS in report_text
 
 
+# profile data from scanned sites must be escaped so a planted payload cannot
+# execute in the report
+XSS_NAME_PAYLOAD = '<img src=x onerror=alert(document.domain)>'
+XSS_IMAGE_PAYLOAD = 'x" onerror="alert(1)'
+XSS_LINK_PAYLOAD = 'http://evil.example/"><script>alert(1)</script>'
+
+
+def _xss_username_results():
+    result = copy.deepcopy(GOOD_RESULT)
+    result.tags = ['photo', 'us']
+    result.ids_data = {
+        "name": XSS_NAME_PAYLOAD,
+        "bio": XSS_NAME_PAYLOAD,
+        "image": XSS_IMAGE_PAYLOAD,
+        "external_url": XSS_LINK_PAYLOAD,
+    }
+    data = {
+        'EvilSite': {
+            'username': 'victimtarget',
+            'parsing_enabled': True,
+            'url_main': 'https://evil.example/',
+            'url_user': 'https://evil.example/victimtarget',
+            'status': result,
+            'http_status': 200,
+            'is_similar': False,
+            'rank': 1,
+            'site': MaigretSite('EvilSite', {}),
+            'found': True,
+            'ids_data': result.ids_data,
+        },
+    }
+    return [('victimtarget', 'username', data)]
+
+
+def _assert_no_xss(rendered: str):
+    # no executable payload markup survives, only escaped (harmless) text
+    assert XSS_NAME_PAYLOAD not in rendered
+    assert '<img src=x onerror' not in rendered
+    assert '<script>alert(1)</script>' not in rendered
+    assert 'onerror="alert(1)"' not in rendered  # image attribute breakout
+    assert '&lt;img src=x onerror=alert(document.domain)&gt;' in rendered
+
+
+def test_html_report_escapes_extracted_profile_data():
+    context = generate_report_context(_xss_username_results())
+    template, _ = generate_report_template(is_pdf=False)
+    rendered = template.render(**context)
+
+    _assert_no_xss(rendered)
+
+
+def test_pdf_report_escapes_extracted_profile_data():
+    context = generate_report_context(_xss_username_results())
+    template, _ = generate_report_template(is_pdf=True)
+    rendered = template.render(**context)
+
+    _assert_no_xss(rendered)
+
+
+def test_report_preserves_legit_auto_link():
+    # A benign extracted link must still render as a real, clickable anchor.
+    result = copy.deepcopy(GOOD_RESULT)
+    result.ids_data = {"external_url": "https://example.com/profile"}
+    data = {
+        'Site': {
+            'username': 'u',
+            'parsing_enabled': True,
+            'url_main': 'https://example.com/',
+            'url_user': 'https://example.com/u',
+            'status': result,
+            'http_status': 200,
+            'is_similar': False,
+            'rank': 1,
+            'site': MaigretSite('Site', {}),
+            'found': True,
+            'ids_data': result.ids_data,
+        },
+    }
+    context = generate_report_context([('u', 'username', data)])
+    template, _ = generate_report_template(is_pdf=False)
+    rendered = template.render(**context)
+
+    assert (
+        '<a class="auto-link" href="https://example.com/profile">'
+        'https://example.com/profile</a>'
+    ) in rendered
+
+
 def test_html_report_broken():
     report_name = 'report_test_broken.html'
     BROKEN_DATA = copy.deepcopy(TEST)
diff --git a/tests/test_utils.py b/tests/test_utils.py
index ddbe303..2a96c80 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -3,6 +3,8 @@
 import itertools
 import re
 
+from markupsafe import Markup
+
 from maigret.utils import (
     CaseConverter,
     is_country_tag,
@@ -76,6 +78,27 @@ def test_enrich_link_str():
     )
 
 
+def test_enrich_link_str_escapes_payload():
+    # markup inside a link must be escaped while the <a> wrapper is preserved
+    payload = 'http://evil.example/"><img src=x onerror=alert(1)>'
+    result = enrich_link_str(payload)
+
+    assert isinstance(result, Markup)
+    assert '<img' not in result
+    assert '&lt;img' in result
+    assert '"><img' not in result
+    assert result.startswith('<a class="auto-link" href="')
+
+
+def test_enrich_link_str_non_link_is_plain_str():
+    # non-link values stay plain str so template autoescaping neutralizes them
+    payload = '<script>alert(1)</script>'
+    result = enrich_link_str(payload)
+
+    assert not isinstance(result, Markup)
+    assert result == payload
+
+
 def test_url_extract_main_part_negative():
     url_main_part = 'None'
     assert URLMatcher.extract_main_part(url_main_part) == ''