Information disclosure in Discourse - CVE-2025-49845
Published: July 16, 2025
Vulnerability identifier: #VU112989
CSH Severity: Medium
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-49845
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application. A remote attacker can continue to see their own whispers even after losing visibility of posts typed "whisper".
Affected software
Discourse
How to mitigate CVE-2025-49845
Install updates from vendor's website.
Discourse - addressed in versions 3.4.6, 3.5.0 beta8