Discourse is an open-source messaging platform. In versions 3.0.1 and prior on the `stable` branch and versions 3.1.0.beta2 and prior on the `beta` and `tests-passed` branches, the count of personal messages displayed for a tag is a count of all personal messages regardless of whether the personal message is visible to a given user. As a result, any users can technically poll a sensitive tag to determine if a new personal message is created even if the user does not have access to the personal message.
In the patched versions, the count of personal messages tagged with a given tag is hidden by default. To revert to the old behaviour of displaying the count of personal messages for a given tag, an admin may enable the `display_personal_messages_tag_counts` site setting.
Metrics
No CVSS v4.0
Attack Vector Network
Attack Complexity Low
Privileges Required Low
Scope Unchanged
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
User Interaction Required
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
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Discourse |
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Configuration 1 [-]
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No data.
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published: 2023-03-16T20:21:13.539Z
Updated: 2024-08-02T10:49:07.633Z
Reserved: 2023-01-19T21:12:31.361Z
Link: CVE-2023-23935
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-03-16T21:15:13.183
Modified: 2024-11-21T07:47:08.080
Link: CVE-2023-23935
Redhat
No data.