diff --git a/javascript/ql/test/query-tests/Security/CWE-078/CommandInjection/CommandInjection.expected b/javascript/ql/test/query-tests/Security/CWE-078/CommandInjection/CommandInjection.expected
index dc9c65822ba..22bcd24a578 100644
--- a/javascript/ql/test/query-tests/Security/CWE-078/CommandInjection/CommandInjection.expected
+++ b/javascript/ql/test/query-tests/Security/CWE-078/CommandInjection/CommandInjection.expected
@@ -82,6 +82,9 @@
 | other.js:28:27:28:29 | cmd | other.js:5:25:5:31 | req.url | other.js:28:27:28:29 | cmd | This command line depends on a $@. | other.js:5:25:5:31 | req.url | user-provided value |
 | other.js:30:33:30:35 | cmd | other.js:5:25:5:31 | req.url | other.js:30:33:30:35 | cmd | This command line depends on a $@. | other.js:5:25:5:31 | req.url | user-provided value |
 | other.js:34:44:34:46 | cmd | other.js:5:25:5:31 | req.url | other.js:34:44:34:46 | cmd | This command line depends on a $@. | other.js:5:25:5:31 | req.url | user-provided value |
+| promisification.js:24:22:24:25 | code | promisification.js:21:18:21:25 | req.body | promisification.js:24:22:24:25 | code | This command line depends on a $@. | promisification.js:21:18:21:25 | req.body | user-provided value |
+| promisification.js:52:21:52:24 | code | promisification.js:49:18:49:25 | req.body | promisification.js:52:21:52:24 | code | This command line depends on a $@. | promisification.js:49:18:49:25 | req.body | user-provided value |
+| promisification.js:55:15:55:18 | code | promisification.js:49:18:49:25 | req.body | promisification.js:55:15:55:18 | code | This command line depends on a $@. | promisification.js:49:18:49:25 | req.body | user-provided value |
 | third-party-command-injection.js:6:21:6:27 | command | third-party-command-injection.js:5:20:5:26 | command | third-party-command-injection.js:6:21:6:27 | command | This command line depends on a $@. | third-party-command-injection.js:5:20:5:26 | command | user-provided value |
 edges
 | actions.js:8:9:8:13 | title | actions.js:9:16:9:20 | title | provenance |  |
@@ -259,6 +262,11 @@ edges
 | other.js:5:9:5:11 | cmd | other.js:34:44:34:46 | cmd | provenance |  |
 | other.js:5:15:5:38 | url.par ... , true) | other.js:5:9:5:11 | cmd | provenance |  |
 | other.js:5:25:5:31 | req.url | other.js:5:15:5:38 | url.par ... , true) | provenance |  |
+| promisification.js:21:11:21:14 | code | promisification.js:24:22:24:25 | code | provenance |  |
+| promisification.js:21:18:21:25 | req.body | promisification.js:21:11:21:14 | code | provenance |  |
+| promisification.js:49:11:49:14 | code | promisification.js:52:21:52:24 | code | provenance |  |
+| promisification.js:49:11:49:14 | code | promisification.js:55:15:55:18 | code | provenance |  |
+| promisification.js:49:18:49:25 | req.body | promisification.js:49:11:49:14 | code | provenance |  |
 | third-party-command-injection.js:5:20:5:26 | command | third-party-command-injection.js:6:21:6:27 | command | provenance |  |
 nodes
 | actions.js:8:9:8:13 | title | semmle.label | title |
@@ -446,6 +454,13 @@ nodes
 | other.js:28:27:28:29 | cmd | semmle.label | cmd |
 | other.js:30:33:30:35 | cmd | semmle.label | cmd |
 | other.js:34:44:34:46 | cmd | semmle.label | cmd |
+| promisification.js:21:11:21:14 | code | semmle.label | code |
+| promisification.js:21:18:21:25 | req.body | semmle.label | req.body |
+| promisification.js:24:22:24:25 | code | semmle.label | code |
+| promisification.js:49:11:49:14 | code | semmle.label | code |
+| promisification.js:49:18:49:25 | req.body | semmle.label | req.body |
+| promisification.js:52:21:52:24 | code | semmle.label | code |
+| promisification.js:55:15:55:18 | code | semmle.label | code |
 | third-party-command-injection.js:5:20:5:26 | command | semmle.label | command |
 | third-party-command-injection.js:6:21:6:27 | command | semmle.label | command |
 subpaths
diff --git a/javascript/ql/test/query-tests/Security/CWE-078/CommandInjection/promisification.js b/javascript/ql/test/query-tests/Security/CWE-078/CommandInjection/promisification.js
new file mode 100644
index 00000000000..09e4285b4b7
--- /dev/null
+++ b/javascript/ql/test/query-tests/Security/CWE-078/CommandInjection/promisification.js
@@ -0,0 +1,153 @@
+const express = require('express');
+const bodyParser = require('body-parser');
+const cp = require('child_process');
+
+const app = express();
+app.use(bodyParser.json());
+
+function legacyEval(code) {
+    cp.exec(code.code); // $ MISSING: Alert
+}
+
+app.post('/eval', async (req, res) => {
+    const { promisify } = require('util');
+    const evalAsync = promisify(legacyEval);
+    const code = req.body; // $ MISSING: Source
+    evalAsync(code);
+});
+
+app.post('/eval', async (req, res) => {
+    const directPromisify = require('util.promisify');
+    const code = req.body; // $ Source
+
+    const promisifiedExec3 = directPromisify(cp.exec);
+    promisifiedExec3(code); // $ Alert
+});
+
+app.post('/eval', async (req, res) => {
+    const promisify2 = require('util.promisify-all');
+    const promisifiedCp = promisify2(cp);
+    const code = req.body; // $ MISSING: Source
+    promisifiedCp.exec(code); // $ MISSING: Alert
+});
+
+
+app.post('/eval', async (req, res) => {
+    var garPromisify = require("@gar/promisify");
+    const code = req.body; // $ MISSING: Source
+
+    const promisifiedExec = garPromisify(cp.exec);
+    promisifiedExec(code); // $ MISSING: Alert
+
+    const promisifiedCp = garPromisify(cp);
+    promisifiedCp.exec(code); // $ MISSING: Alert
+});
+
+app.post('/eval', async (req, res) => {
+    require('util.promisify/shim')();
+    const util = require('util');
+    const code = req.body; // $ Source
+
+    const promisifiedExec = util.promisify(cp.exec);
+    promisifiedExec(code); // $ Alert
+
+    const execAsync = util.promisify(cp.exec.bind(cp));
+    execAsync(code); // $ Alert
+});
+
+
+app.post('/eval', async (req, res) => {
+    const es6Promisify = require("es6-promisify");
+    let cmd = req.body; // $ MISSING: Source
+
+    // Test basic promisification
+    const promisifiedExec = es6Promisify(cp.exec);
+    promisifiedExec(cmd); // $ MISSING: Alert
+
+    // Test with method binding
+    const execBoundAsync = es6Promisify(cp.exec.bind(cp));
+    execBoundAsync(cmd); // $ MISSING: Alert
+
+    const promisifiedExecMulti = es6Promisify(cp.exec, {
+        multiArgs: true
+    });
+    promisifiedExecMulti(cmd); // $ MISSING: Alert
+
+    const promisifiedCp = es6Promisify.promisifyAll(cp);
+    promisifiedCp.exec(cmd); // $ MISSING: Alert
+    promisifiedCp.execFile(cmd); // $ MISSING: Alert
+    promisifiedCp.spawn(cmd); // $ MISSING: Alert
+
+    const lambda = es6Promisify((code, callback) => {
+        try {
+            const result = cp.exec(code); // $ MISSING: Alert
+            callback(null, result);
+        } catch (err) {
+            callback(err);
+        }
+    });
+    lambda(cmd);
+});
+
+
+app.post('/eval', async (req, res) => {
+    var thenifyAll = require('thenify-all');
+    var cpThenifyAll = thenifyAll(require('child_process'), {}, [
+      'exec',
+      'execSync',
+    ]);
+    const code = req.body; // $ MISSING: Source
+    cpThenifyAll.exec(code); // $ MISSING: Alert
+    cpThenifyAll.execSync(code); // $ MISSING: Alert
+    cpThenifyAll.execFile(code); // $ MISSING: Alert - not promisified, as it is not listed in `thenifyAll`
+
+
+    var cpThenifyAll1 = thenifyAll.withCallback(require('child_process'), {}, ['exec']);
+    cpThenifyAll1.exec(code, function (err, string) {}); // $ MISSING: Alert
+
+    var cpThenifyAll2 = thenifyAll(require('child_process'));
+    cpThenifyAll2.exec(code); // $ MISSING: Alert
+});
+
+app.post('/eval', async (req, res) => {
+    const maybe = require('call-me-maybe');
+    const code = req.body; // $ MISSING: Source
+    
+    function createExecPromise(cmd) {
+        return new Promise((resolve) => {
+            resolve(cmd);
+        });
+    }
+    
+    const cmdPromise = createExecPromise(code);
+    maybe(null, cmdPromise).then(cmd => {
+        cp.exec(cmd); // $ MISSING: Alert
+    });
+});
+
+app.post('/eval', async (req, res) => {
+    const utilPromisify = require('util-promisify');
+    const code = req.body; // $ MISSING: Source
+
+    const promisifiedExec = utilPromisify(cp.exec);
+    promisifiedExec(code); // $ MISSING: Alert
+
+    const execAsync = utilPromisify(cp.exec.bind(cp));
+    execAsync(code); // $ MISSING: Alert
+});
+
+app.post('/eval', async (req, res) => {
+    const {promisify, promisifyAll} = require('@google-cloud/promisify');
+    const code = req.body; // $ MISSING: Source
+
+    const promisifiedExec = promisify(cp.exec);
+    promisifiedExec(code); // $ MISSING: Alert
+
+    const execAsync = promisify(cp.exec.bind(cp));
+    execAsync(code); // $ MISSING: Alert
+
+    const promisifiedCp = promisifyAll(cp);
+    promisifiedCp.exec(code); // $ MISSING: Alert
+    promisifiedCp.execFile(code); // $ MISSING: Alert
+    promisifiedCp.spawn(code); // $ MISSING: Alert
+});