From 6c0a81ed969afba7e629c04b848cc3108de95a62 Mon Sep 17 00:00:00 2001
From: crowdsec-automation
 <63358111+crowdsec-automation@users.noreply.github.com>
Date: Wed, 17 Jun 2026 12:35:00 +0200
Subject: [PATCH 1/4] Add vpatch-CVE-2025-53693 rule

---
 .../crowdsecurity/vpatch-CVE-2025-53693.yaml  | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 appsec-rules/crowdsecurity/vpatch-CVE-2025-53693.yaml

diff --git a/appsec-rules/crowdsecurity/vpatch-CVE-2025-53693.yaml b/appsec-rules/crowdsecurity/vpatch-CVE-2025-53693.yaml
new file mode 100644
index 00000000000..61831722f33
--- /dev/null
+++ b/appsec-rules/crowdsecurity/vpatch-CVE-2025-53693.yaml
@@ -0,0 +1,34 @@
+## autogenerated on 2026-06-17 10:34:57
+name: crowdsecurity/vpatch-CVE-2025-53693
+description: 'Detects Sitecore XAML AjaxScriptManager cache poisoning via AddToCache reflection method.'
+rules:
+  - and:
+      - zones:
+          - URI
+        transform:
+          - lowercase
+        match:
+          type: contains
+          value: '/-/xaml/'
+      - zones:
+          - BODY_ARGS
+        variables:
+          - __parameters
+        transform:
+          - lowercase
+          - urldecode
+        match:
+          type: contains
+          value: 'addtocache'
+
+labels:
+  type: exploit
+  service: http
+  confidence: 3
+  spoofable: 0
+  behavior: 'http:exploit'
+  label: 'Sitecore - Cache Poisoning'
+  classification:
+    - cve.CVE-2025-53693
+    - attack.T1190
+    - cwe.CWE-20

From fa31e1a993b1db45ff7f1d51d85c53915770d4c4 Mon Sep 17 00:00:00 2001
From: crowdsec-automation
 <63358111+crowdsec-automation@users.noreply.github.com>
Date: Wed, 17 Jun 2026 12:35:02 +0200
Subject: [PATCH 2/4] Add vpatch-CVE-2025-53693 test config

---
 .appsec-tests/vpatch-CVE-2025-53693/config.yaml | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .appsec-tests/vpatch-CVE-2025-53693/config.yaml

diff --git a/.appsec-tests/vpatch-CVE-2025-53693/config.yaml b/.appsec-tests/vpatch-CVE-2025-53693/config.yaml
new file mode 100644
index 00000000000..45835b24634
--- /dev/null
+++ b/.appsec-tests/vpatch-CVE-2025-53693/config.yaml
@@ -0,0 +1,5 @@
+## autogenerated on 2026-06-17 10:34:57
+appsec-rules:
+  - ./appsec-rules/crowdsecurity/base-config.yaml
+  - ./appsec-rules/crowdsecurity/vpatch-CVE-2025-53693.yaml
+nuclei_template: CVE-2025-53693.yaml

From fc73f4a2498c6bd3cf58b20fb9d4976226c7e5dd Mon Sep 17 00:00:00 2001
From: crowdsec-automation
 <63358111+crowdsec-automation@users.noreply.github.com>
Date: Wed, 17 Jun 2026 12:35:04 +0200
Subject: [PATCH 3/4] Add CVE-2025-53693.yaml test

---
 .../vpatch-CVE-2025-53693/CVE-2025-53693.yaml | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 .appsec-tests/vpatch-CVE-2025-53693/CVE-2025-53693.yaml

diff --git a/.appsec-tests/vpatch-CVE-2025-53693/CVE-2025-53693.yaml b/.appsec-tests/vpatch-CVE-2025-53693/CVE-2025-53693.yaml
new file mode 100644
index 00000000000..7b7164e7a0c
--- /dev/null
+++ b/.appsec-tests/vpatch-CVE-2025-53693/CVE-2025-53693.yaml
@@ -0,0 +1,21 @@
+## autogenerated on 2026-06-17 10:34:57
+id: CVE-2025-53693
+info:
+  name: CVE-2025-53693
+  author: crowdsec
+  severity: info
+  description: CVE-2025-53693 testing
+  tags: appsec-testing
+http:
+  - raw:
+      - |
+        POST /-/xaml/Sitecore.Shell.Applications.Dialogs.ItemLister.ItemLister HTTP/1.1
+        Host: {{Hostname}}
+        Content-Type: application/x-www-form-urlencoded; charset=UTF-8
+
+        __SOURCE=ItemLister&__PARAMETERS={"method":"AddToCache","parameters":["sitecore_cache_test_123456","<script>alert('x')</script>"]}
+    cookie-reuse: true
+    matchers:
+    - type: status
+      status:
+       - 403

From 2916025cf9239978ba79fd55e9132c0d9690f0b5 Mon Sep 17 00:00:00 2001
From: crowdsec-automation
 <63358111+crowdsec-automation@users.noreply.github.com>
Date: Wed, 17 Jun 2026 12:35:06 +0200
Subject: [PATCH 4/4] Add vpatch-CVE-2025-53693 rule to vpatch collection

---
 collections/crowdsecurity/appsec-virtual-patching.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/collections/crowdsecurity/appsec-virtual-patching.yaml b/collections/crowdsecurity/appsec-virtual-patching.yaml
index c4f95a425d8..c3f6b5d9b9c 100644
--- a/collections/crowdsecurity/appsec-virtual-patching.yaml
+++ b/collections/crowdsecurity/appsec-virtual-patching.yaml
@@ -46,6 +46,7 @@ appsec-rules:
 - crowdsecurity/vpatch-CVE-2023-22527
 - crowdsecurity/vpatch-CVE-2024-5057
 - crowdsecurity/vpatch-CVE-2023-35078
+- crowdsecurity/vpatch-CVE-2025-53693
 - crowdsecurity/vpatch-CVE-2023-35082
 - crowdsecurity/vpatch-CVE-2023-24000
 - crowdsecurity/vpatch-CVE-2022-22954