{"id":"CVE-2025-53102","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-53102","generatedAt":"2026-10-28T03:24:46.844Z","title":"The challenge is not cleared from the user’s session after authentication, potentially allowing reuse and increasing security risk.","description":"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 challenge, which the client signs. The challenge is not cleared from the user’s session after authentication, potentially allowing reuse and increasing security risk. This is fixed in versions 3.4.7 and 3.5.0.beta.8.","published":"2025-07-29T20:15:28.000Z","lastModified":"2026-06-17T09:37:38.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":8.2,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-384"],"affected":["discourse/discourse"],"epss":{"score":0.00499,"percentile":0.42448,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/discourse/discourse/commit/20bf65099bb861a141bc10e8a4eab65329d91802","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/discourse/discourse/commit/8bc0cee2c00a514ea60f33ea6172da2ce5a05beb","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/discourse/discourse/security/advisories/GHSA-hv49-93h5-4wcv","tags":["Third Party Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-53102","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}