Vulnerability in Discourse
CVE-2025-53102
Discourse is an open-source community discussion platform. Prior to version 3.4.7 on the `stable` branch and version 3.5.0.beta.8 on the `tests-passed` branch, upon issuing a physical security key for 2FA, the server generates a WebAuthn c…
EPSS: 0.005 (36.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Discourse — versions >= 3.5.0.beta1, < 3.5.0.beta.8, 3.5.0, < 3.4.7
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-53102?
- CVE-2025-53102 is a critical-severity vulnerability in Discourse, classified under Session Fixation. CVSS score: 9.8/10. Published 2025-07-29.
- How severe is CVE-2025-53102?
- Critical severity. CVSS v3 base score is 9.8 out of 10.