CVE-2023-23935

Published on: Not Yet Published

Last Modified on: 03/17/2023 04:04:00 AM UTC

CVE-2023-23935 - advisory for GHSA-rf8j-mf8c-82v7

Source: Mitre Source: NIST CVE.ORG Print: PDF PDF

Certain versions of Discourse from Discourse contain the following vulnerability:

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.

  • CVE-2023-23935 has been assigned by URL Logo [email protected] to track the vulnerability
  • Affected Vendor/Software: URL Logo discourse - discourse version = stable <= 3.0.1
  • Affected Vendor/Software: URL Logo discourse - discourse version = beta <= 3.1.0.beta2
  • Affected Vendor/Software: URL Logo discourse - discourse version = tests-passed <= 3.1.0.beta2

CVE References

Description Tags ⓘ Link
Presence of restricted personal messages may be leaked if tagged with a tag · Advisory · discourse/discourse · GitHub github.com
text/html
 URL Logo MISC github.com/discourse/discourse/security/advisories/GHSA-rf8j-mf8c-82v7
SECURITY: Hide PM count for tags by default (#20061) · discourse/[email protected] · GitHub github.com
text/html
 URL Logo MISC github.com/discourse/discourse/commit/f31f0b70f82c43d93220ce6fc0d4f57440452f37
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Known Affected Software

Vendor Product Version
Discourse discourse= stable <= 3.0.1
Discourse discourse= beta <= 3.1.0.beta2
Discourse discourse= tests-passed <= 3.1.0.beta2

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2023-23935 : Discourse is an open-source messaging platform. In versions 3.0.1 and prior on the `stable` branch… twitter.com/i/web/status/1… 2023-03-16 21:10:55
Reddit Logo Icon /r/netcve CVE-2023-23935 2023-03-16 21:38:54
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