CVE-2023-23935

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.
Configurations

Configuration 1 (hide)

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History

21 Nov 2024, 07:47

Type Values Removed Values Added
References () https://github.com/discourse/discourse/commit/f31f0b70f82c43d93220ce6fc0d4f57440452f37 - Patch () https://github.com/discourse/discourse/commit/f31f0b70f82c43d93220ce6fc0d4f57440452f37 - Patch
References () https://github.com/discourse/discourse/security/advisories/GHSA-rf8j-mf8c-82v7 - Vendor Advisory () https://github.com/discourse/discourse/security/advisories/GHSA-rf8j-mf8c-82v7 - Vendor Advisory
CVSS v2 : unknown
v3 : 4.3
v2 : unknown
v3 : 3.5

07 Nov 2023, 04:08

Type Values Removed Values Added
Summary 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. 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.

Information

Published : 2023-03-16 21:15

Updated : 2024-11-21 07:47


NVD link : CVE-2023-23935

Mitre link : CVE-2023-23935

CVE.ORG link : CVE-2023-23935


JSON object : View

Products Affected

discourse

  • discourse
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

NVD-CWE-noinfo