Developer technologies | .NET | Other
Microsoft Technologies based on the .NET software framework. Miscellaneous topics that do not fit into specific categories.
VB.Net application query
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(163.2, 35%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECS%3C/text%3E%3C/svg%3E)
Chacko, Santhosh
5
Reputation points
Hi,
One of the Application user lost his Admin access on one VB.Net application.
No admin settings defined in db tables. Nothing set up in web. config. Can't find the reason.
We have no Visual studio/Asp.net installed on the server. Can only open in aspx/master file in Notepad.
Any help appreciated
Thanks
Santhosh Chacko
Developer technologies | .NET | Other
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(9.6, 52%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESK%3C/text%3E%3C/svg%3E)
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Chacko, Santhosh 5 Reputation points
2026-06-22T13:21:53.3633333+00:00 Hi,
One of the Application user lost his Admin access on one VB.Net application.
No admin settings defined in db tables. Nothing set up in web. config. Can't find the reason.
We have no Visual studio/Asp.net installed on the server. Can only open in aspx/master file in Notepad.
Any help appreciated
Thanks
Santhosh Chacko
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Senthil kumar 960 Reputation points
2026-06-22T13:23:39.2166667+00:00 you have any cs or vb file extensions. just confirm.
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Senthil kumar 960 Reputation points
2026-06-22T13:26:05.26+00:00 dont share any code. just share the screenshots will check from here. any keywords are you able to sql or db like that.
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6 answers
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Chacko, Santhosh 5 Reputation points
2026-06-24T08:20:10.8766667+00:00 -
Senthil kumar 960 Reputation points
2026-06-24T08:32:28.8133333+00:00 Here i able to see database connection username and password. if you have access the database check the n table names like user or login, their check any admin rights provided to particular users. suppose not available open login.aspx or user.aspx file check their any admin rights given for particular users.
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Chacko, Santhosh 5 Reputation points
2026-06-24T13:15:48.2133333+00:00 This is the master page. From here the user directed to the home page. If the user has admin privileges then he can see an additional section. That's the session he misses now. Thanks
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(262.40000000000003, 49%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDN%3C/text%3E%3C/svg%3E)
Danny Nguyen (WICLOUD CORPORATION) 7,345 Reputation points Microsoft External Staff Moderator2026-06-23T04:21:29.6266667+00:00 Hi @Chacko, Santhosh ,
Visual Studio not being installed on the server is not likely the cause here.
For a VB.NET / ASP.NET Web Forms app, admin access may be checked from the code, compiled DLLs in the
binfolder,web.config, database tables, or Windows/AD groups.Since only one user lost admin access, I suggest comparing this user with another user who still has admin access:
- Check all
web.configfiles, including any inside subfolders, for authorization or role settings. - Check whether the app uses ASP.NET Membership/Roles tables, such as
aspnet_Rolesoraspnet_UsersInRoles. - Check whether the user was removed from any Windows/AD security group.
- Check if there was any recent deployment, database restore, or user account change.
If there are no
.vbfiles on the server, the main logic may already be compiled into DLLs in thebinfolder, so checking only.aspx/.masterfiles may not show where the Admin role is decided.For reference, you can check these docs: Control authorization permissions in ASP.NET Membership in ASP.NET Web Forms
In short, find where the app decides the user is an Admin, then compare the affected user with a working admin user.
If you found my response helpful or informative, I would greatly appreciate it if you could follow this guidance or provide feedback.
Thank you.
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Danny Nguyen (WICLOUD CORPORATION) 7,345 Reputation points Microsoft External Staff Moderator
2026-06-24T09:25:06.3933333+00:00 From the screenshot, I see connection strings and general ASP.NET settings. I do not see clear
authentication,authorization,membership, orroleManagersettings here.So the Admin access check is likely handled somewhere else, such as:
- Application code / compiled DLLs in the
binfolder - Database tables or stored procedures
- Another
web.configfile under a subfolder - Windows / AD group membership, if Windows authentication is used
Please also avoid sharing full connection strings, usernames, or passwords publicly.
If possible, I suggest finding where the application decides whether the user is Admin.
- Application code / compiled DLLs in the
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Chacko, Santhosh 5 Reputation points
2026-06-24T13:16:19.5+00:00 Hi @Danny Nguyen (WICLOUD CORPORATION)
This is the master page. From here the user directed to the home page. If the user has admin privileges then he can see an additional section. That's the session he misses now. Thanks
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Danny Nguyen (WICLOUD CORPORATION) 7,345 Reputation points Microsoft External Staff Moderator
2026-06-25T10:07:53.32+00:00 Thanks, this screenshot helps.
The master page already contains the admin menu:
asp:Menu ID="AdminHome"with items like Add, Edit, Delete. So the admin section is not missing from the.masterfile.If the user cannot see it, the menu is likely being hidden or enabled/disabled from the code-behind, because the page points to:
CodeBehind="Ordering.master.vb"
Inherits="WebApplication1.Ordering"Please check the original
Ordering.master.vbsource code, or the compiled DLLs in thebinfolder if the.vbfile is not on the server.Search for things like:
AdminHome.Visible
Session
Admin
Role
Privilege
IsInRoleAlso compare this user with another working admin user in the database or AD group membership.
Based on this screenshot, the next key check is the code-behind logic that decides whether
AdminHomeshould be visible.
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Senthil kumar 960 Reputation points
2026-06-22T17:48:06.7866667+00:00 Ok, are you able to see web config file. if available share screenshot suppose any password is there just blur it and share .
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Chacko, Santhosh 5 Reputation points
2026-06-22T13:49:54.1433333+00:00 The application user suddenly lost his admin access. No admin setup maintained in db or in config file. We have access to the aspx files, but can't troubleshoot the issue as no visual studio dotnet installed in the server.
Thanks
Santhosh
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Senthil kumar 960 Reputation points
2026-06-22T17:50:05.32+00:00 No issue. share login page apsx file screenshot. will check here.
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Chacko, Santhosh 5 Reputation points
2026-06-22T13:36:57.2466667+00:00