diff --git a/lib/core/option.py b/lib/core/option.py
index cb51ee479..5ae0f5aca 100755
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -1863,6 +1863,7 @@ def _setKnowledgeBaseAttributes(flushAll=True):
     kb.authHeader = None
     kb.bannerFp = AttribDict()
     kb.binaryField = False
+    kb.browserVerification = None
 
     kb.brute = AttribDict({"tables": [], "columns": []})
     kb.bruteMode = False
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 9f1e6303c..1ff8b883a 100755
--- 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 = "1.1.6.5"
+VERSION = "1.1.6.6"
 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/lib/request/basic.py b/lib/request/basic.py
index de6bdae5f..6e9d0e368 100644
--- a/lib/request/basic.py
+++ b/lib/request/basic.py
@@ -375,6 +375,13 @@ def processResponse(page, responseHeaders, status=None):
                         conf.paramDict[PLACE.POST][name] = value
                 conf.parameters[PLACE.POST] = re.sub("(?i)(%s=)[^&]+" % re.escape(name), r"\g<1>%s" % re.escape(value), conf.parameters[PLACE.POST])
 
+    if not kb.browserVerification and re.search(r"(?i)browser.?verification", page or ""):
+        kb.browserVerification = True
+        warnMsg = "potential browser verification protection mechanism detected"
+        if re.search(r"(?i)CloudFlare", page):
+            warnMsg += " (CloudFlare)"
+        singleTimeWarnMessage(warnMsg)
+
     if not kb.captchaDetected and re.search(r"(?i)captcha", page or ""):
         for match in re.finditer(r"(?si)<form.+?</form>", page):
             if re.search(r"(?i)captcha", match.group(0)):
diff --git a/txt/checksum.md5 b/txt/checksum.md5
index 05d4f3717..2e011f854 100644
--- a/txt/checksum.md5
+++ b/txt/checksum.md5
@@ -40,13 +40,13 @@ b9ff4e622c416116bee6024c0f050349  lib/core/enums.py
 310efc965c862cfbd7b0da5150a5ad36  lib/core/__init__.py
 9ba39bf66e9ecd469446bdbbeda906c3  lib/core/log.py
 edcfce0850771e6454acef244d5c5760  lib/core/optiondict.py
-a09c6ceee8dbb624cc3ca1d17749c8a5  lib/core/option.py
+0ff0d360c02b4b92293aa7e5ee705d49  lib/core/option.py
 5f2f56e6c5f274408df61943f1e080c0  lib/core/profiling.py
 40be71cd774662a7b420caeb7051e7d5  lib/core/readlineng.py
 d8e9250f3775119df07e9070eddccd16  lib/core/replication.py
 785f86e3f963fa3798f84286a4e83ff2  lib/core/revision.py
 40c80b28b3a5819b737a5a17d4565ae9  lib/core/session.py
-d556e1cf87bd101aa7f0a46fdbbbdff3  lib/core/settings.py
+b1151afaf0f49ea541ff914956438100  lib/core/settings.py
 d91291997d2bd2f6028aaf371bf1d3b6  lib/core/shell.py
 2ad85c130cc5f2b3701ea85c2f6bbf20  lib/core/subprocessng.py
 8136241fdbdb99a5dc0e51ba72918f6e  lib/core/target.py
@@ -66,7 +66,7 @@ ad74fc58fc7214802fd27067bce18dd2  lib/core/unescaper.py
 0b010b7cdb2e42b5aa0caa59607279ad  lib/parse/payloads.py
 997d0452e6fc22411f81a334511bcb3d  lib/parse/sitemap.py
 403d873f1d2fd0c7f73d83f104e41850  lib/request/basicauthhandler.py
-86cb5ce3fa5530c255f4599bfc0cc4e2  lib/request/basic.py
+7e77acc0e13a222a086dd052c52b1964  lib/request/basic.py
 ef48de622b0a6b4a71df64b0d2785ef8  lib/request/comparison.py
 a912b5148a089ec333cc9210d53235ea  lib/request/connect.py
 fb6b788d0016ab4ec5e5f661f0f702ad  lib/request/direct.py