Add vpatch-CVE-2025-20282 rule and test

.appsec-tests/vpatch-CVE-2025-20282/CVE-2025-20282.yaml

@@ -0,0 +1,31 @@
+## autogenerated on 2026-08-26 09:03:09
+id: CVE-2025-20282
+info:
+  name: CVE-2025-20282
+  author: crowdsec
+  severity: info
+  description: CVE-2025-20282 testing
+  tags: appsec-testing
+
+variables:
+  probe_zip: "{{base64_decode('UEsDBBQAAAAAAHcdA12wBb+DFAAAABQAAAAJAAAAcHJvYmUudHh0Q1ZFLTIwMjUtMjAyODItcHJvYmVQSwECFAMUAAAAAAB3HQNdsAW/gxQAAAAUAAAACQAAAAAAAAAAAAAAgAEAAAAAcHJvYmUudHh0UEsFBgAAAAABAAEANwAAADsAAAAAAA==')}}"
+
+http:
+  - raw:
+      - |
+        POST /admin/files-upload/ HTTP/1.1
+        Host: {{Hostname}}
+        Content-Type: multipart/form-data; boundary=----ISEProbe202520282
+
+        ------ISEProbe202520282
+        Content-Disposition: form-data; name="file"; filename="probe.zip"
+        Content-Type: application/zip
+
+        {{probe_zip}}
+        ------ISEProbe202520282--
+
+    cookie-reuse: true
+    matchers:
+      - type: status
+        status:
+          - 403

.appsec-tests/vpatch-CVE-2025-20282/config.yaml

@@ -0,0 +1,5 @@
+## autogenerated on 2026-08-26 09:03:09
+appsec-rules:
+  - ./appsec-rules/crowdsecurity/base-config.yaml
+  - ./appsec-rules/crowdsecurity/vpatch-CVE-2025-20282.yaml
+nuclei_template: CVE-2025-20282.yaml

appsec-rules/crowdsecurity/vpatch-CVE-2025-20282.yaml

@@ -0,0 +1,32 @@
+## autogenerated on 2026-08-26 09:03:09
+name: crowdsecurity/vpatch-CVE-2025-20282
+description: 'Detects unauthenticated arbitrary file uploads to the Cisco ISE files-upload API.'
+rules:
+  - and:
+      - zones:
+          - URI
+        transform:
+          - lowercase
+          - urldecode
+        match:
+          type: contains
+          value: '/admin/files-upload/'
+      - zones:
+          - FILENAMES
+        transform:
+          - lowercase
+        match:
+          type: contains
+          value: '.zip'
+
+labels:
+  type: exploit
+  service: http
+  confidence: 3
+  spoofable: 0
+  behavior: 'http:exploit'
+  label: 'Cisco ISE - FILE UPLOAD'
+  classification:
+    - cve.CVE-2025-20282
+    - attack.T1059
+    - cwe.CWE-434

collections/crowdsecurity/appsec-virtual-patching.yaml

@@ -104,6 +104,7 @@ appsec-rules:
 - crowdsecurity/vpatch-CVE-2024-57727
 - crowdsecurity/vpatch-CVE-2024-27292
 - crowdsecurity/vpatch-CVE-2025-24893
+- crowdsecurity/vpatch-CVE-2025-20282
 - crowdsecurity/vpatch-CVE-2021-43798
 - crowdsecurity/vpatch-CVE-2022-1388
 - crowdsecurity/vpatch-CVE-2021-26294