diff --git a/lib/core/option.py b/lib/core/option.py
index 4afb109c7..1d9a6bf2d 100644
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -2063,7 +2063,7 @@ def _setKnowledgeBaseAttributes(flushAll=True):
     kb.lastParserStatus = None
 
     kb.locks = AttribDict()
-    for _ in ("cache", "connError", "count", "handlers", "hint", "index", "io", "limit", "log", "socket", "redirect", "request", "value"):
+    for _ in ("cache", "connError", "count", "handlers", "hint", "index", "io", "limit", "liveCookies", "log", "socket", "redirect", "request", "value"):
         kb.locks[_] = threading.Lock()
 
     kb.matchRatio = None
diff --git a/lib/core/optiondict.py b/lib/core/optiondict.py
index c0cfe5d0d..402c983e2 100644
--- a/lib/core/optiondict.py
+++ b/lib/core/optiondict.py
@@ -27,6 +27,7 @@ optDict = {
         "paramDel": "string",
         "cookie": "string",
         "cookieDel": "string",
+        "liveCookies": "string",
         "loadCookies": "string",
         "dropSetCookie": "boolean",
         "agent": "string",
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 04f5b6142..87c20dbfe 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -18,7 +18,7 @@ from lib.core.enums import OS
 from thirdparty.six import unichr as _unichr
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.4.10.27"
+VERSION = "1.4.10.28"
 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)
@@ -52,6 +52,9 @@ IPS_WAF_CHECK_RATIO = 0.5
 # Timeout used in heuristic check for WAF/IPS protected targets
 IPS_WAF_CHECK_TIMEOUT = 10
 
+# Timeout used in checking for existence of live-cookies file
+LIVE_COOKIES_TIMEOUT = 120
+
 # Lower and upper values for match ratio in case of stable page
 LOWER_RATIO_BOUND = 0.02
 UPPER_RATIO_BOUND = 0.98
diff --git a/lib/parse/cmdline.py b/lib/parse/cmdline.py
index a198a300b..10d98e148 100644
--- a/lib/parse/cmdline.py
+++ b/lib/parse/cmdline.py
@@ -168,6 +168,9 @@ def cmdLineParser(argv=None):
         request.add_argument("--cookie-del", dest="cookieDel",
             help="Character used for splitting cookie values (e.g. ;)")
 
+        request.add_argument("--live-cookies", dest="liveCookies",
+            help="Live cookies file used for loading up-to-date values")
+
         request.add_argument("--load-cookies", dest="loadCookies",
             help="File containing cookies in Netscape/wget format")
 
diff --git a/lib/request/connect.py b/lib/request/connect.py
index 739d4dd13..bcbed1724 100644
--- a/lib/request/connect.py
+++ b/lib/request/connect.py
@@ -7,6 +7,7 @@ See the file 'LICENSE' for copying permission
 
 import binascii
 import logging
+import os
 import random
 import re
 import socket
@@ -25,6 +26,7 @@ except ImportError:
 from lib.core.agent import agent
 from lib.core.common import asciifyUrl
 from lib.core.common import calculateDeltaSeconds
+from lib.core.common import checkFile
 from lib.core.common import checkSameHost
 from lib.core.common import chunkSplitPostData
 from lib.core.common import clearConsoleLine
@@ -100,6 +102,7 @@ from lib.core.settings import IPS_WAF_CHECK_PAYLOAD
 from lib.core.settings import IS_WIN
 from lib.core.settings import JAVASCRIPT_HREF_REGEX
 from lib.core.settings import LARGE_READ_TRIM_MARKER
+from lib.core.settings import LIVE_COOKIES_TIMEOUT
 from lib.core.settings import MAX_CONNECTION_READ_SIZE
 from lib.core.settings import MAX_CONNECTIONS_REGEX
 from lib.core.settings import MAX_CONNECTION_TOTAL_SIZE
@@ -292,6 +295,30 @@ class Connect(object):
 
             return page, headers, code
 
+        if conf.liveCookies:
+            with kb.locks.liveCookies:
+                if not checkFile(conf.liveCookies, raiseOnError=False) or os.path.getsize(conf.liveCookies) == 0:
+                    warnMsg = "[%s] [WARNING] live cookies file '%s' is empty or non-existent. Waiting for timeout (%d seconds)" % (time.strftime("%X"), conf.liveCookies, LIVE_COOKIES_TIMEOUT)
+                    dataToStdout(warnMsg)
+
+                    valid = False
+                    for _ in xrange(LIVE_COOKIES_TIMEOUT):
+                        if checkFile(conf.liveCookies, raiseOnError=False) and os.path.getsize(conf.liveCookies) > 0:
+                            valid = True
+                            break
+                        else:
+                            dataToStdout('.')
+                            time.sleep(1)
+
+                    dataToStdout("\n")
+
+                    if not valid:
+                        errMsg = "problem occurred while loading cookies from file '%s'" % conf.liveCookies
+                        raise SqlmapValueException(errMsg)
+
+                cookie = openFile(conf.liveCookies).read().strip()
+                cookie = re.sub(r"(?i)\ACookie:\s*", "", cookie)
+
         if multipart:
             post = multipart
         else:
diff --git a/lib/techniques/union/use.py b/lib/techniques/union/use.py
index 241fcea7e..14ae60ef9 100644
--- a/lib/techniques/union/use.py
+++ b/lib/techniques/union/use.py
@@ -5,11 +5,9 @@ Copyright (c) 2006-2020 sqlmap developers (http://sqlmap.org/)
 See the file 'LICENSE' for copying permission
 """
 
-import binascii
 import json
 import re
 import time
-import xml.etree.ElementTree
 
 from lib.core.agent import agent
 from lib.core.bigarray import BigArray
@@ -33,14 +31,11 @@ from lib.core.common import isNumPosStrValue
 from lib.core.common import listToStrValue
 from lib.core.common import parseUnionPage
 from lib.core.common import removeReflectiveValues
-from lib.core.common import safeStringFormat
 from lib.core.common import singleTimeDebugMessage
 from lib.core.common import singleTimeWarnMessage
 from lib.core.common import unArrayizeValue
 from lib.core.common import wasLastResponseDBMSError
 from lib.core.compat import xrange
-from lib.core.convert import decodeBase64
-from lib.core.convert import getBytes
 from lib.core.convert import getUnicode
 from lib.core.convert import htmlUnescape
 from lib.core.data import conf
diff --git a/plugins/generic/databases.py b/plugins/generic/databases.py
index eb2061753..3f73e4adc 100644
--- a/plugins/generic/databases.py
+++ b/plugins/generic/databases.py
@@ -10,7 +10,6 @@ import re
 from lib.core.agent import agent
 from lib.core.common import arrayizeValue
 from lib.core.common import Backend
-from lib.core.common import extractRegexResult
 from lib.core.common import filterNone
 from lib.core.common import filterPairValues
 from lib.core.common import flattenValue
@@ -23,7 +22,6 @@ from lib.core.common import isTechniqueAvailable
 from lib.core.common import parseSqliteTableSchema
 from lib.core.common import popValue
 from lib.core.common import pushValue
-from lib.core.common import randomStr
 from lib.core.common import readInput
 from lib.core.common import safeSQLIdentificatorNaming
 from lib.core.common import safeStringFormat
@@ -54,7 +52,6 @@ from lib.core.settings import REFLECTED_VALUE_MARKER
 from lib.core.settings import UPPER_CASE_DBMSES
 from lib.core.settings import VERTICA_DEFAULT_SCHEMA
 from lib.request import inject
-from lib.techniques.union.use import unionUse
 from lib.utils.brute import columnExists
 from lib.utils.brute import tableExists
 from thirdparty import six
diff --git a/sqlmap.conf b/sqlmap.conf
index 480cb27c3..b5f3cfced 100644
--- a/sqlmap.conf
+++ b/sqlmap.conf
@@ -51,6 +51,9 @@ cookie =
 # Character used for splitting cookie values (e.g. ;).
 cookieDel = 
 
+# Live cookies file used for loading up-to-date values.
+liveCookies = 
+
 # File containing cookies in Netscape/wget format.
 loadCookies =