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CWE-287

4,777 CVEs • Abstraction: Class • Likelihood of Exploit: High

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

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CVEs (4,777)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
CVE-2006-2380
1Microsoft
1Windows 2000
Apr 16, 2026
Jun 13, 2006
N/A· v4
N/A· v3
4.3 MEDIUM· v2
Microsoft Windows 2000 SP4 does not properly validate an RPC server during mutual authentication over SSL, which allows remote attackers to spoof an RPC server, aka the "RPC Mutual Authentication Vulnerability."
CVE-2006-2636
1Katy Whitton
1Newscmslite
Apr 16, 2026
May 30, 2006
N/A· v4
N/A· v3
7.5 HIGH· v2
newsadmin.asp in Katy Whitton NewsCMSLite allows remote attackers to bypass authentication and gain administrative access by setting the loggedIn cookie to "xY1zZoPQ".
CVE-2006-2369
1Vnc
1Realvnc
Apr 16, 2026
May 15, 2006
N/A· v4
N/A· v3
7.5 HIGH· v2
RealVNC 4.1.1, and other products that use RealVNC such as AdderLink IP and Cisco CallManager, allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such a...Show more
RealVNC 4.1.1, and other products that use RealVNC such as AdderLink IP and Cisco CallManager, allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as "Type 1 - None", which is accepted even if it is not offered by the server, as originally demonstrated using a long password.Show less
CVE-2006-2224
1Quagga
1Quagga Routing Software Suite
Apr 16, 2026
May 5, 2006
N/A· v4
N/A· v3
5.0 MEDIUM· v2
RIPd in Quagga 0.98 and 0.99 before 20060503 does not properly enforce RIPv2 authentication requirements, which allows remote attackers to modify routing state via RIPv1 RESPONSE packets.
CVE-2006-1228
1Drupal
1Drupal
Apr 16, 2026
Mar 14, 2006
N/A· v4
N/A· v3
5.1 MEDIUM· v2
Session fixation vulnerability in Drupal 4.5.x before 4.5.8 and 4.6.x before 4.5.8 allows remote attackers to gain privileges by tricking a user to click on a URL that fixes the session identifier.
CVE-2006-0633
1Invisionpower
1Invision Power Board
Apr 16, 2026
Feb 10, 2006
N/A· v4
N/A· v3
6.4 MEDIUM· v2
The make_password function in ipsclass.php in Invision Power Board (IPB) 2.1.4 uses random data generated from partially predictable seeds to create the authentication code that is sent by e-mail to a user with a lost pa...Show more
The make_password function in ipsclass.php in Invision Power Board (IPB) 2.1.4 uses random data generated from partially predictable seeds to create the authentication code that is sent by e-mail to a user with a lost password, which might make it easier for remote attackers to guess the code and change the password for an IPB account, possibly involving millions of requests.Show less
CVE-2006-0416
1Sleeperchat
1Sleeperchat
Apr 16, 2026
Jan 25, 2006
N/A· v4
N/A· v3
5.0 MEDIUM· v2
SleeperChat 0.3f and earlier allows remote attackers to bypass authentication and create new entries via the txt parameter to (1) chat_no.php and (2) chat_if.php.
CVE-2006-0374
1Advantage Century Telecommunication
1P202s
Apr 16, 2026
Jan 22, 2006
N/A· v4
N/A· v3
7.5 HIGH· v2
Advantage Century Telecommunication (ACT) P202S IP Phone 1.01.21 running firmware 1.1.21 has multiple undocumented ports available, which (1) might allow remote attackers to obtain sensitive information, such as memory c...Show more
Advantage Century Telecommunication (ACT) P202S IP Phone 1.01.21 running firmware 1.1.21 has multiple undocumented ports available, which (1) might allow remote attackers to obtain sensitive information, such as memory contents and internal operating-system data, by directly accessing the VxWorks WDB remote debugging ONCRPC (aka wdbrpc) on UDP 17185, (2) reflect network data using echo (TCP 7), or (3) gain access without authentication using rlogin (TCP 513).Show less
CVE-2005-4861
1Jasio.net
1Ragnarok Online Control Panel
Apr 16, 2026
Dec 31, 2005
N/A· v4
N/A· v3
7.5 HIGH· v2
functions.php in Ragnarok Online Control Panel (ROCP) 4.3.4a allows remote attackers to bypass authentication by requesting account_manage.php with a trailing "/login.php" PHP_SELF value, which is not properly handled by...Show more
functions.php in Ragnarok Online Control Panel (ROCP) 4.3.4a allows remote attackers to bypass authentication by requesting account_manage.php with a trailing "/login.php" PHP_SELF value, which is not properly handled by the CHECK_AUTH function.Show less
CVE-2005-4851
1Ez
1Ez Publish
Apr 16, 2026
Dec 31, 2005
N/A· v4
N/A· v3
4.0 MEDIUM· v2
eZ publish 3.4.4 through 3.7 before 20050722 applies certain permissions on the node level, which allows remote authenticated users to bypass the original permissions on embedded objects in XML fields and read these obje...Show more
eZ publish 3.4.4 through 3.7 before 20050722 applies certain permissions on the node level, which allows remote authenticated users to bypass the original permissions on embedded objects in XML fields and read these objects.Show less
CVE-2005-4006
1Redgraphic
1Sapid Cms
Apr 16, 2026
Dec 5, 2005
N/A· v4
N/A· v3
7.5 HIGH· v2
SAPID CMS before 1.2.3.03 allows remote attackers to bypass authentication via direct requests to the usr/system files (1) insert_file.php, (2) insert_image.php, (3) insert_link.php, (4) insert_qcfile.php, and (5) edit.p...Show more
SAPID CMS before 1.2.3.03 allows remote attackers to bypass authentication via direct requests to the usr/system files (1) insert_file.php, (2) insert_image.php, (3) insert_link.php, (4) insert_qcfile.php, and (5) edit.php.Show less
CVE-2005-3979
1Coppermine Gallery
1Coppermine Photo Gallery
Apr 16, 2026
Dec 3, 2005
N/A· v4
N/A· v3
5.0 MEDIUM· v2
relocate_server.php in Coppermine Photo Gallery (CPG) 1.4.2 and 1.4 beta is not removed after installation and does not use authentication, which allows remote attackers to obtain sensitive information, such as database...Show more
relocate_server.php in Coppermine Photo Gallery (CPG) 1.4.2 and 1.4 beta is not removed after installation and does not use authentication, which allows remote attackers to obtain sensitive information, such as database configuration, via a direct request.Show less
CVE-2005-1957
1Adam Mmedici
1File Upload Manager
Apr 16, 2026
Jun 12, 2005
N/A· v4
N/A· v3
7.5 HIGH· v2
mtnpeak.net File Upload Manager does not properly check user authentication for certain actions, which allows remote attackers to provide a modified base64-encoded file parameter and (1) read arbitrary files via the "vie...Show more
mtnpeak.net File Upload Manager does not properly check user authentication for certain actions, which allows remote attackers to provide a modified base64-encoded file parameter and (1) read arbitrary files via the "view" action or (2) delete arbitrary files via the del action.Show less
CVE-2005-1020
1Cisco
1Ios
Apr 16, 2026
May 2, 2005
N/A· v4
N/A· v3
7.1 HIGH· v2
Secure Shell (SSH) 2 in Cisco IOS 12.0 through 12.3 allows remote attackers to cause a denial of service (device reload) (1) via a username that contains a domain name when using a TACACS+ server to authenticate, (2) whe...Show more
Secure Shell (SSH) 2 in Cisco IOS 12.0 through 12.3 allows remote attackers to cause a denial of service (device reload) (1) via a username that contains a domain name when using a TACACS+ server to authenticate, (2) when a new SSH session is in the login phase and a currently logged in user issues a send command, or (3) when IOS is logging messages and an SSH session is terminated while the server is sending data.Show less
CVE-2004-2736
1Polar Software
1Helpdesk
Apr 16, 2026
Dec 31, 2004
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Polar HelpDesk 3.0 allows remote attackers to bypass authentication by setting the UserId and UserType values in a cookie.
CVE-2004-2734
1Novell
1Netware
Apr 16, 2026
Dec 31, 2004
N/A· v4
N/A· v3
10.0 HIGH· v2
webadmin-apache.conf in Novell Web Manager of Novell NetWare 6.5 uses an uppercase Alias tag with an inconsistent lowercase directory tag for a volume, which allows remote attackers to bypass access control to the WEB-IN...Show more
webadmin-apache.conf in Novell Web Manager of Novell NetWare 6.5 uses an uppercase Alias tag with an inconsistent lowercase directory tag for a volume, which allows remote attackers to bypass access control to the WEB-INF folder.Show less
CVE-2004-2724
1Lionmax Software
1Chat Anywhere
Apr 16, 2026
Dec 31, 2004
N/A· v4
N/A· v3
7.1 HIGH· v2
LionMax Software Chat Anywhere 2.72a allows remote attackers to cause a denial of service (server crash and client CPU consumption) via a username beginning with percent (%) followed by a null character.
CVE-2004-2715
1Php Heaven
1Phpmychat
Apr 16, 2026
Dec 31, 2004
N/A· v4
N/A· v3
7.5 HIGH· v2
edituser.php3 in PHPMyChat 0.14.5 allow remote attackers to bypass authentication and gain administrative privileges by setting the do_not_login parameter to false.
CVE-2004-2182
1Macromedia
1Jrun
Apr 16, 2026
Dec 31, 2004
N/A· v4
N/A· v3
7.5 HIGH· v2
Session fixation vulnerability in Macromedia JRun 4.0 allows remote attackers to hijack user sessions by pre-setting the user session ID information used by the session server.
CVE-2004-1760
2Cisco
Ibm
17Call Manager
Conference ConnectionDirector Agent+14 more
Apr 16, 2026
Jan 21, 2004
N/A· v4
N/A· v3
10.0 HIGH· v2
The default installation of Cisco voice products, when running the IBM Director Agent on IBM servers before OS 2000.2.6, does not require authentication, which allows remote attackers to gain administrator privileges by...Show more
The default installation of Cisco voice products, when running the IBM Director Agent on IBM servers before OS 2000.2.6, does not require authentication, which allows remote attackers to gain administrator privileges by connecting to TCP port 14247.Show less