diff --git a/lib/core/settings.py b/lib/core/settings.py
index 6a177aec3..65652d4e7 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -19,7 +19,7 @@ from lib.core.enums import DBMS_DIRECTORY_NAME
 from lib.core.enums import OS
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.3.1.22"
+VERSION = "1.3.1.23"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/txt/checksum.md5 b/txt/checksum.md5
index f988c7120..419d83487 100644
--- a/txt/checksum.md5
+++ b/txt/checksum.md5
@@ -49,7 +49,7 @@ fe370021c6bc99daf44b2bfc0d1effb3  lib/core/patch.py
 9a7d68d5fa01561500423791f15cc676  lib/core/replication.py
 3179d34f371e0295dd4604568fb30bcd  lib/core/revision.py
 d6269c55789f78cf707e09a0f5b45443  lib/core/session.py
-f32c2c0a78e084114e793736d30fb241  lib/core/settings.py
+31b674a0b6ac1a6ef4ceefa5553ec310  lib/core/settings.py
 a8a7501d1e6b21669b858a62e921d191  lib/core/shell.py
 5dc606fdf0afefd4b305169c21ab2612  lib/core/subprocessng.py
 eec3080ba5baca44c6de4595f1c92a0d  lib/core/target.py
@@ -467,7 +467,6 @@ ba0fb1e6b815446b9d6f30950900fc80  waf/trafficshield.py
 455bb16f552e7943e0a5cf35e83a74ea  waf/virusdie.py
 67df54343a85fe053226e2a5483b2c64  waf/wallarm.py
 114000c53115fa8f4dd9b1b9122ec32a  waf/watchguard.py
-c8dcaa89f6cde684a578fdc2e9ab2bb8  waf/webappsecure.py
 a7b8c4c3d1463409e0e204932f0ddff0  waf/webknight.py
 ac9e4e3ced77012ed97284634a9ffc74  waf/wordfence.py
 e16122cb40e5f3a66cba359cfb672bd2  waf/yundun.py
diff --git a/waf/webappsecure.py b/waf/webappsecure.py
deleted file mode 100644
index e966302c0..000000000
--- a/waf/webappsecure.py
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/env python
-
-"""
-Copyright (c) 2006-2019 sqlmap developers (http://sqlmap.org/)
-See the file 'LICENSE' for copying permission
-"""
-
-__product__ = "webApp.secure (webScurity)"
-
-def detect(get_page):
-    _, _, code = get_page()
-    if code == 403:
-        return False
-    _, _, code = get_page(get="nx=@@")
-    return code == 403