CVE-2025-64528
6.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
Summary
Discourse is an open source discussion platform. Prior to versions 3.5.3, 2025.11.1, and 2025.12.0, an attacker who knows part of a username can find the user and their full name via UI or API, even when enable_names is disabled. Versions 3.5.3, 2025.11.1, and 2025.12.0 contain a fix.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| discourse | discourse | < 3.5.3 | affected |
| discourse | discourse | >= 2025.11.0-latest, < 2025.11.1 | affected |
| discourse | discourse | >= 2025.12.0-latest, < 2025.12.0 | affected |
Weaknesses
- CWE-202: CWE-202: Exposure of Sensitive Information Through Data Queries
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/discourse/discourse/security/advisories/GHSA-c59w-jwx7-34v4
- https://github.com/discourse/discourse/commit/1cb45b8b287597085e3514596ffb1d9b41938f81
- https://github.com/discourse/discourse/commit/6192f55629624925595dae14364fd86cac0f09df
- https://github.com/discourse/discourse/commit/e936a523b5900a9d866d23ea3da904ba12bb0fb2
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