diff --git a/data/txt/sha256sums.txt b/data/txt/sha256sums.txt
index ff6e30915..07a945bdf 100644
--- a/data/txt/sha256sums.txt
+++ b/data/txt/sha256sums.txt
@@ -167,7 +167,7 @@ d69e84f1648cdb907f5d2dd454f03874a4613752b07867510145d51d84b3c56f  lib/controller
 1966ca704961fb987ab757f0a4afddbf841d1a880631b701487c75cef63d60c3  lib/controller/__init__.py
 9e694e4864d865c5da745aaf9d35da885eff697a9a0f7b37c3e85d47b4378f64  lib/core/agent.py
 b13462712ec5ac07541dba98631ddcda279d210b838f363d15ac97a1413b67a2  lib/core/bigarray.py
-91a1257c761b560bf00c9b94a6838c6dcb7aef2a24c85eb8fd67a41b980c0d75  lib/core/common.py
+03a144d63d7fdd2c0124f8b51e0af3e94455596153d11425d516bc13165f2962  lib/core/common.py
 a6397b10de7ae7c56ed6b0fa3b3c58eb7a9dbede61bf93d786e73258175c981e  lib/core/compat.py
 a9997e97ebe88e0bf7efcf21e878bc5f62c72348e5aba18f64d6861390a4dcf2  lib/core/convert.py
 c03dc585f89642cfd81b087ac2723e3e1bb3bfa8c60e6f5fe58ef3b0113ebfe6  lib/core/data.py
@@ -188,7 +188,7 @@ ccd3b414727ef75f5d533f9518198b61322781f3ee53a86643763e029b2874c0  lib/core/dump.
 48797d6c34dd9bb8a53f7f3794c85f4288d82a9a1d6be7fcf317d388cb20d4b3  lib/core/replication.py
 0b8c38a01bb01f843d94a6c5f2075ee47520d0c4aa799cecea9c3e2c5a4a23a6  lib/core/revision.py
 888daba83fd4a34e9503fe21f01fef4cc730e5cde871b1d40e15d4cbc847d56c  lib/core/session.py
-f8db5d72cb41479e3f656245698b8381cb27d85429d828c258febbe66f8feb58  lib/core/settings.py
+529ef1798ed4c1bcd80dd2b349798b0df2aba80c259fbcc1923f4536abbf0d47  lib/core/settings.py
 cd5a66deee8963ba8e7e9af3dd36eb5e8127d4d68698811c29e789655f507f82  lib/core/shell.py
 bcb5d8090d5e3e0ef2a586ba09ba80eef0c6d51feb0f611ed25299fbb254f725  lib/core/subprocessng.py
 70ea3768f1b3062b22d20644df41c86238157ec80dd43da40545c620714273c6  lib/core/target.py
@@ -241,7 +241,7 @@ f552b6140d4069be6a44792a08f295da8adabc1c4bb6a5e100f222f87144ca9d  lib/techniques
 1966ca704961fb987ab757f0a4afddbf841d1a880631b701487c75cef63d60c3  lib/techniques/union/__init__.py
 30cae858e2a5a75b40854399f65ad074e6bb808d56d5ee66b94d4002dc6e101b  lib/techniques/union/test.py
 a8a795f29ec6fd66482926f04b054ed492a033982c3b7837c5d2ea32368acec0  lib/techniques/union/use.py
-67dff80a17503b91c8ff93788ccc037b6695aa18b0793894b42488cbb21c4c83  lib/utils/api.py
+f8c30ed8e79f93a6b5535e2d8977b9c10bdc10142418760213f8a2548bf199ad  lib/utils/api.py
 ea5e14f8c9d74b0fb17026b14e3fb70ee90e4046e51ab2c16652d86b3ca9b949  lib/utils/brute.py
 da5bcbcda3f667582adf5db8c1b5d511b469ac61b55d387cec66de35720ed718  lib/utils/crawler.py
 a94958be0ec3e9d28d8171813a6a90655a9ad7e6aa33c661e8d8ebbfcf208dbb  lib/utils/deps.py
diff --git a/lib/core/common.py b/lib/core/common.py
index 974c7320b..994a77df8 100644
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -13,6 +13,7 @@ import contextlib
 import copy
 import functools
 import getpass
+import hmac
 import hashlib
 import inspect
 import io
@@ -5654,3 +5655,28 @@ def checkSums():
                     break
 
     return retVal
+
+def safeCompareStrings(a, b):
+    """
+    Constant-time string comparison to prevent timing attacks.
+    >>> safeCompareStrings("test", "test")
+    True
+    >>> safeCompareStrings("test", None)
+    False
+    >>> safeCompareStrings("test1", "test2")
+    False
+    """
+    if a is None or b is None:
+        return a == b
+
+    if hasattr(hmac, "compare_digest"):
+        return hmac.compare_digest(a, b)
+
+    # Fallback for Python < 2.7.7 and < 3.3
+    if len(a) != len(b):
+        return False
+
+    result = 0
+    for x, y in zip(a, b):
+        result |= ord(x) ^ ord(y)
+    return result == 0
diff --git a/lib/core/settings.py b/lib/core/settings.py
index b260f3c86..0d109e111 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -20,7 +20,7 @@ from lib.core.enums import OS
 from thirdparty import six
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.10.4.8"
+VERSION = "1.10.4.9"
 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/utils/api.py b/lib/utils/api.py
index b0242b3ad..911347ec8 100644
--- a/lib/utils/api.py
+++ b/lib/utils/api.py
@@ -293,7 +293,7 @@ def setRestAPILog():
 
 # Generic functions
 def is_admin(token):
-    return DataStore.admin_token == token
+    return safeCompareStrings(DataStore.admin_token, token)
 
 @hook('before_request')
 def check_authentication():