D-Link DIR-869 DIR869Ax_FW102B15 is vulnerable to Authentication Bypass via phpcgi.

D-Link DIR-1960 firmware DIR-1960_A1_1.11 was discovered to contain a buffer overflow via srtcat in prog.cgi. This vulnerability allowed attackers to cause a Denial of Service (DoS) via a crafted HTTP request.

DLink DIR850 ET850-1.08TRb03 is affected by an incorrect access control vulnerability through an unauthenticated remote configuration download.

Local File Inclusion due to path traversal in D-Link DAP-1620 leads to unauthorized internal files reading [/etc/passwd] and [/etc/shadow].

An informtion disclosure issue exists in D-LINK-DIR-605 B2 Firmware Version : 2.01MT. An attacker can obtain a user name and password by forging a post request to the / getcfg.php page

There are some web interfaces without authentication requirements on D-Link DIR-412 A1-1.14WW routers. An attacker can get the router's log file via log_get.php, which could be used to discover the intranet network structure.

D-Link – G integrated Access Device4 Information Disclosure & Authorization Bypass. *Information Disclosure – file contains a URL with private IP at line 15 "login.asp" A. The window.location.href = http://192.168.1.1/setupWizard.asp" http://192.168.1.1/setupWizard.asp" ; "admin" – contains default username value "login.asp" B. While accessing the web interface, the login form at *Authorization Bypass – URL by "setupWizard.asp' while it blocks direct access to – the web interface does not properly validate user identity variables values located at the client side, it is available to access it without a "login_glag" and "login_status" checking browser and to read the admin user credentials for the web interface.

A flaw in the authentication mechanism in the Login Panel of router D-Link DSL-3782 (A1_WI_20170303 || SWVer="V100R001B012" FWVer="3.10.0.24" FirmVer="TT_77616E6771696F6E67") allows unauthenticated attackers to perform arbitrary modification (read, write) to passwords and configurations meanwhile an administrator is logged into the web panel.

D-Link DIR-100 4.03B07: cli.cgi security bypass due to failure to check authentication parameters

D-Link DIR-505L SharePort Mobile Companion 1.01 and DIR-826L Wireless N600 Cloud Router 1.02 allows remote attackers to bypass authentication via a direct request when an authorized session is active.

D-Link DIR-822 C1 before v3.11B01Beta, DIR-822-US C1 before v3.11B01Beta, DIR-850L A* before v1.21B08Beta, DIR-850L B* before v2.22B03Beta, and DIR-880L A* before v1.20B02Beta devices allow authentication bypass.

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DAP-2610 Firmware v2.01RC067 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of passwords. The issue results from the lack of proper password checking. An attacker can leverage this vulnerability to execute arbitrary code in the context of root. Was ZDI-CAN-10082.

An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. Authentication can be bypassed when accessing cgi modules. This allows one to perform administrative tasks (e.g., modify the admin password) with no authentication.

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DAP-1330 1.10B01 BETA Wi-Fi range extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper handling of cookies. An attacker can leverage this vulnerability to execute arbitrary code on the router. Was ZDI-CAN-9554.

On D-Link DIR-823G devices, ExportSettings.sh, upload_settings.cgi, GetDownLoadSyslog.sh, and upload_firmware.cgi do not require authentication, which allows remote attackers to execute arbitrary code.

An issue was discovered on D-Link DVA-5592 A1_WI_20180823 devices. If the PIN of the page "/ui/cbpc/login" is the default Parental Control PIN (0000), it is possible to bypass the login form by editing the path of the cookie "sid" generated by the page. The attacker will have access to the router control panel with administrator privileges.

D-Link DIR865L v1.03 suffers from an "Unauthenticated Hardware Linking" vulnerability.

A vulnerability has been found in D-Link DHP-W310AV 1.04 and classified as critical. This vulnerability affects unknown code. The manipulation leads to authentication bypass by spoofing. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

An issue was discovered on D-Link DIR-809 A1 through 1.09, A2 through 1.11, and Guest Zone through 1.09 devices. One can bypass authentication mechanisms to download the configuration file.

An Authentication Bypass vulnerability exists in upnp/asf-mp4.asf when streaming live video in D-Link TESCO DCS-2121 1.05_TESCO, TESCO DCS-2102 1.05_TESCO, DCS-2121 1.06_FR, 1.06, and 1.05_RU, DCS-2102 1.06_FR. 1.06, and 1.05_RU, which could let a malicious user obtain sensitive information.

D-Link DIR-601 A1 1.02NA devices do not require the old password for a password change, which occurs in cleartext.

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers with firmware 1.10B04. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper implementation of the authentication algorithm. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the router. Was ZDI-CAN-9470.

D-Link DIR-615 Wireless N 300 Router allows authentication bypass via a modified POST request to login.cgi. This issue occurs because it fails to validate the password field. Successful exploitation of this issue allows an attacker to take control of the affected device.

On the D-Link DIR-615 before v20.12PTb04, once authenticated, this device identifies the user based on the IP address of his machine. By spoofing the IP address belonging to the victim's host, an attacker might be able to take over the administrative session without being prompted for authentication credentials. An attacker can get the victim's and router's IP addresses by simply sniffing the network traffic. Moreover, if the victim has web access enabled on his router and is accessing the web interface from a different network that is behind the NAT/Proxy, an attacker can sniff the network traffic to know the public IP address of the victim's router and take over his session as he won't be prompted for credentials.

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of D-Link DVA-2800 and DSL-2888A routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dhttpd service, which listens on TCP port 8008 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-10912.

An issue was discovered on D-Link DSL-2888A devices with firmware prior to AU_2.31_V1.1.47ae55. An unauthenticated attacker could bypass authentication to access authenticated pages and functionality.

An issue was discovered on D-Link DIR-878 1.12B01 devices. At the /HNAP1 URI, an attacker can log in with a blank password.

A vulnerability was found in D-Link DI-7003GV2 24.04.18D1 R(68125). It has been classified as critical. This affects the function sub_497DE4 of the file /H5/netconfig.asp. The manipulation leads to improper authentication. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

An issue in D-Link DI-8100 16.07.26A1 allows a remote attacker to bypass administrator login authentication

The D-Link DIR-615 with firmware 3.10NA does not require administrative authentication for apply.cgi, which allows remote attackers to (1) change the admin password via the admin_password parameter, (2) disable the security requirement for the Wi-Fi network via unspecified vectors, or (3) modify DNS settings via unspecified vectors.

SharePort Web Access on D-Link DIR-868L REVB through 2.03, DIR-885L REVA through 1.20, and DIR-895L REVA through 1.21 devices allows Authentication Bypass, as demonstrated by a direct request to folder_view.php or category_view.php.

D-Link DIR-601 B1 2.00NA devices are vulnerable to authentication bypass. They do not check for authentication at the server side and rely on client-side validation, which is bypassable. NOTE: this is an end-of-life product.

/web/Lib/Action/IndexAction.class.php in D-Link Central WiFi Manager CWM(100) before v1.03R0100_BETA6 allows remote attackers to execute arbitrary PHP code via a cookie because a cookie's username field allows eval injection, and an empty password bypasses authentication.

D-Link DSL-G256DG version vBZ_1.00.27 web management interface allows authentication bypass via an unspecified method.

The ping tool in multiple D-Link and TRENDnet devices allow remote attackers to execute arbitrary code via the ping_addr parameter to ping.ccp.

The check_login function in D-Link DNR-326 before 2.10 build 03 allows remote attackers to bypass authentication and log in by setting the username cookie parameter to an arbitrary string.

The web/web_file/fb_publish.php script in D-Link DNS-320L before 1.04b12 and DNS-327L before 1.03b04 Build0119 does not authenticate requests, which allows remote attackers to obtain arbitrary photos and publish them to an arbitrary Facebook profile via a target album_id and access_token.

D-Link DNS-320L firmware before 1.04b12, DNS-327L before 1.03b04 Build0119, DNR-326 1.40b03, DNS-320B 1.02b01, DNS-345 1.03b06, DNS-325 1.05b03, and DNS-322L 2.00b07 allow remote attackers to bypass authentication and log in with administrator permissions by passing the cgi_set_wto command in the cmd parameter, and setting the spawned session's cookie to username=admin.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 firmware version 1.04B03 WiFi extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the uhttpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the device. Was ZDI-CAN-10894.

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-1935 1.03 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-16142.

D-Link DIR845L A1 contains a authentication vulnerability via an AUTHORIZED_GROUP=1 value, as demonstrated by a request for getcfg.php.

An issue was discovered on D-Link DIR-850L 1.21WW devices. A partially completed WPA handshake is sufficient for obtaining full access to the wireless network. A client can access the network by sending packets on Data Frames to the AP without encryption.

DCS-5000L v1.05 and DCS-932L v2.17 and older are affecged by Incorrect Acess Control. The use of the basic authentication for the devices command interface allows attack vectors that may compromise the cameras configuration and allow malicious users on the LAN to access the device. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

D-Link DIR845L v1.00-v1.03 contains a Static Default Credential vulnerability in /etc/init0.d/S80telnetd.sh.

D-Link DIR-816 A2 1.10 B05 allows unauthenticated attackers to arbitrarily reset the device via a crafted tokenid parameter to /goform/form2Reboot.cgi.

D-Link DAP-1860 devices before v1.04b03 Beta allow access to administrator functions without authentication via the HNAP_AUTH header timestamp value. In HTTP requests, part of the HNAP_AUTH header is the timestamp used to determine the time when the user sent the request. If this value is equal to the value stored in the device's /var/hnap/timestamp file, the request will pass the HNAP_AUTH check function.

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the API plugin exposes a `decryptString` action without any authentication. Anyone can submit ciphertext and receive plaintext. Ciphertext is issued publicly (e.g., `view/url2Embed.json.php`), so any user can recover protected tokens/metadata. Commit 3fdeecef37bb88967a02ccc9b9acc8da95de1c13 contains a patch.

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the WebSocket endpoint (/ws) allows unauthenticated connections when specific URL parameters are provided (?app=siyuan&id=auth&type=auth). This bypass, intended for the login page to keep the kernel alive, allows any external client — including malicious websites via cross-origin WebSocket — to connect and receive all server push events in real-time. These events leak sensitive document metadata including document titles, notebook names, file paths, and all CRUD operations performed by authenticated users. Combined with the absence of Origin header validation, a malicious website can silently connect to a victim's local SiYuan instance and monitor their note-taking activity. This issue has been fixed in version 3.6.1.