CVE-2025-49845

HIGH

Discourse < 3.4.6 - Exposure of Sensitive Information via Whisper Post Visibility

Title source: llm
STIX 2.1

Description

Discourse is an open-source discussion platform. The visibility of posts typed `whisper` is controlled via the `whispers_allowed_groups` site setting. Only users that belong to groups specified in the site setting are allowed to view posts typed `whisper`. However, it has been discovered that users of versions prior to 3.4.6 on the `stable` branch and prior to 3.5.0.beta8-dev on the `tests-passed` branch can continue to see their own whispers even after losing visibility of posts typed `whisper`. This issue is patched in versions 3.4.6 and 3.5.0.beta8-dev. No known workarounds are available.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0051
EPSS Percentile 66.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (1)
discourse/discourse < 3.4.6
Published Jun 25, 2025
Tracked Since Feb 18, 2026