diff --git a/lib/cppcheck.cpp b/lib/cppcheck.cpp
index 9aa7ec9d6b0..c47d133236a 100644
--- a/lib/cppcheck.cpp
+++ b/lib/cppcheck.cpp
@@ -1593,6 +1593,9 @@ void CppCheck::executeAddons(const std::vector<std::string>& files, const std::s
             }
             errmsg.file0 = file0;
 
+            if (obj.count("cwe")>0)
+                errmsg.cwe = CWE(obj["cwe"].get<std::int64_t>());
+
             if (obj.count("hash")>0)
                 errmsg.hash = obj["hash"].get<std::int64_t>();
 
diff --git a/test/cli/premium_test.py b/test/cli/premium_test.py
index 45121819e87..1bb01260b42 100644
--- a/test/cli/premium_test.py
+++ b/test/cli/premium_test.py
@@ -166,6 +166,23 @@ def test_help(tmpdir):
     assert 'cppchecksolutions.com' in stdout, stdout  # check for premium help link
 
 
+def test_cwe(tmpdir):
+    # Trac 14323 - addon warnings with cwe
+    test_file = os.path.join(tmpdir, 'test.c')
+    addon_file = os.path.join(tmpdir, 'premiumaddon.py')
+
+    with open(test_file, 'wt') as f:
+        f.write('void foo();\n')
+
+    args = [f"--addon={addon_file}", '--xml', test_file]
+
+    with open(addon_file, 'wt') as f:
+        f.write('print(\'{"addon":"a","column":1,"errorId":"id","extra":"","file":"test.c","cwe":123,"linenr":1,"message":"bug","severity":"error"}\')')
+
+    _, _, stderr = cppcheck(args)
+    assert '<error id="a-id" severity="error" msg="bug" verbose="bug" cwe="123" ' in stderr
+
+
 def test_hash(tmpdir):
     # Trac 14225 - warnings with hash
     test_file = os.path.join(tmpdir, 'test.c')