Every CVESearch/Get API key

CVE-2023-46241

Potential account take over due to unverified emails from Microsoft Identity Platform

9.1 Critical

discourse-microsoft-auth is a plugin that enables authentication via Microsoft. On sites with the discourse-microsoft-auth plugin enabled, an attack can potentially take control of a victim's Discourse account. Sites that have configured their application's account type to any options other than Accounts in this organizational directory only (O365 only - Single tenant) are vulnerable. This vulnerability has been patched in commit c40665f44509724b64938c85def9fb2e79f62ec8 of discourse-microsoft-auth. A microsoft_auth:revoke rake task has also been added which will deactivate and log out all users that have connected their accounts to Microsoft. User API keys as well as API keys created by those users will also be revoked. The rake task will also remove the connection records to Microsoft for those users. This will allow affected users to re-verify their account emails as well as reconnect their Discourse account to Microsoft for authentication. As a workaround, disable the discourse-microsoft-auth plugin by setting the microsoft_auth_enabled site setting to false. Run the microsoft_auth:log_out_users rake task to log out all users with associated Microsoft accounts.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.80%Up 0.8 points since Feb 22, 2024
90%50%10%1%

What each source reports

CVE List Score used9.1

Potential account take over due to unverified emails from Microsoft Identity Platform

discourse-microsoft-auth is a plugin that enables authentication via Microsoft. On sites with the discourse-microsoft-auth plugin enabled, an attack can potentially take control of a victim's Discourse account. Sites that have configured their application's account type to any options other than Accounts in this organizational directory only (O365 only - Single tenant) are vulnerable. This vulnerability has been patched in commit c40665f44509724b64938c85def9fb2e79f62ec8 of discourse-microsoft-auth. A microsoft_auth:revoke rake task has also been added which will deactivate and log out all users that have connected their accounts to Microsoft. User API keys as well as API keys created by those users will also be revoked. The rake task will also remove the connection records to Microsoft for those users. This will allow affected users to re-verify their account emails as well as reconnect their Discourse account to Microsoft for authentication. As a workaround, disable the discourse-microsoft-auth plugin by setting the microsoft_auth_enabled site setting to false. Run the microsoft_auth:log_out_users rake task to log out all users with associated Microsoft accounts.

Record
CVE-2023-46241
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-863
Updated
2026-11-02
EUVDEUVD-2023-504769.1

discourse-microsoft-auth is a plugin that enables authentication via Microsoft. On sites with the discourse-microsoft-auth plugin enabled, an attack can potentially take control of a victim's Discourse account. Sites that have configured their application's account type to any options other than Accounts in this organizational directory only (O365 only - Single tenant) are vulnerable. This vulnerability has been patched in commit c40665f44509724b64938c85def9fb2e79f62ec8 of discourse-microsoft-auth. A microsoft_auth:revoke rake task has also been added which will deactivate and log out all users that have connected their accounts to Microsoft. User API keys as well as API keys created by those users will also be revoked. The rake task will also remove the connection records to Microsoft for those users. This will allow affected users to re-verify their account emails as well as reconnect their Discourse account to Microsoft for authentication. As a workaround, disable the discourse-microsoft-auth plugin by setting the microsoft_auth_enabled site setting to false. Run the microsoft_auth:log_out_users rake task to log out all users with associated Microsoft accounts.

Record
EUVD-2023-50476
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Updated
2026-11-03
NVD9.0

discourse-microsoft-auth is a plugin that enables authentication via Microsoft. On sites with the discourse-microsoft-auth plugin enabled, an attack can potentially take control of a victim's Discourse account. Sites that have configured their application's account type to any options other than Accounts in this organizational directory only (O365 only - Single tenant) are vulnerable. This vulnerability has been patched in commit c40665f44509724b64938c85def9fb2e79f62ec8 of discourse-microsoft-auth. A microsoft_auth:revoke rake task has also been added which will deactivate and log out all users that have connected their accounts to Microsoft. User API keys as well as API keys created by those users will also be revoked. The rake task will also remove the connection records to Microsoft for those users. This will allow affected users to re-verify their account emails as well as reconnect their Discourse account to Microsoft for authentication. As a workaround, disable the discourse-microsoft-auth plugin by setting the microsoft_auth_enabled site setting to false. Run the microsoft_auth:log_out_users rake task to log out all users with associated Microsoft accounts.

Record
CVE-2023-46241
CVSS 3.1
9.0 CriticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-863
Updated
2026-11-02
OSV9.0

Potential account take over due to unverified emails from Microsoft Identity Platform

discourse-microsoft-auth is a plugin that enables authentication via Microsoft. On sites with the discourse-microsoft-auth plugin enabled, an attack can potentially take control of a victim's Discourse account. Sites that have configured their application's account type to any options other than Accounts in this organizational directory only (O365 only - Single tenant) are vulnerable. This vulnerability has been patched in commit c40665f44509724b64938c85def9fb2e79f62ec8 of discourse-microsoft-auth. A microsoft_auth:revoke rake task has also been added which will deactivate and log out all users that have connected their accounts to Microsoft. User API keys as well as API keys created by those users will also be revoked. The rake task will also remove the connection records to Microsoft for those users. This will allow affected users to re-verify their account emails as well as reconnect their Discourse account to Microsoft for authentication. As a workaround, disable the discourse-microsoft-auth plugin by setting the microsoft_auth_enabled site setting to false. Run the microsoft_auth:log_out_users rake task to log out all users with associated Microsoft accounts.

Record
CVE-2023-46241
CVSS 3.1
9.0 CriticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-863
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-46241 is a critical vulnerability (CVSS 9.1) in Discourse, published February 21, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.80%, the 57th percentile. No source names a fixed version.

References

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