What’s Vulnerable › Vulnerabilities
CVE-2025-49845: Discourse users are able to see their own whispers even after being removed from a group that has been configured to see whispers
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-06-25 · updated 2026-06-17
- Weakness: CWE-200
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.
Affected products
- discourse: before 3.4.6 — fixed in 3.4.6
How to fix
Upgrade to a fixed version: discourse 3.4.6. Check the vendor advisory for mitigations.
References
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