{"cve":"CVE-2025-58055","nvd":{"published":"2025-10-01T19:15:36.317","modified":"2026-10-19T17:10:00.173","status":"Modified","description":"Discourse is an open-source community discussion platform. In versions 3.5.0 and below, the Discourse AI suggestion endpoints for topic “Title”, “Category”, and “Tags” allowed authenticated users to extract information about topics that they weren’t authorized to access. By modifying the “topic_id” value in API requests to the AI suggestion endpoints, users could target specific restricted topics. The AI model’s responses then disclosed information that the authenticated user couldn’t normally access. This issue is fixed in version 3.5.1. To workaround this issue, users can restrict group access to the AI helper feature through the \"composer_ai_helper_allowed_groups\" and \"post_ai_helper_allowed_groups\" site settings.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3},"cwes":["CWE-639","CWE-284"],"references":["https://github.com/discourse/discourse/commit/28d569cae9b33cd55d647bf41806106e33d975c9","https://github.com/discourse/discourse/security/advisories/GHSA-32v2-x274-vfhr","https://www.vicarius.io/vsociety/posts/cve-2025-58055-detect-discourse-vulnerability","https://www.vicarius.io/vsociety/posts/cve-2025-58055-mitigate-discourse-vulnerability"],"products":["discourse:discourse"],"source":"nvd","synced_at":"2026-10-19T22:11:26.888974865+00:00"},"epss":{"cve":"CVE-2025-58055","score":0.0026,"percentile":0.17538,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}