{"id":"CVE-2023-27485","aliases":["EUVD-2023-31252","GHSA-fhq8-p3w6-mmgr"],"status":"published","title":"Insufficient verification of authorisation when accessing subresults in thmmniii/fbs-core","description":"thmmniii/fbs-core is an open source feedback system for students. In versions prior to 1.5.3 when querying `subresults`, it is possible to query `subresults` from other users due to insufficient authorisation. This is only possible for logged-in users and it is not possible to associate the subresults with a specific user. This bug was fixed in commit `f1ae67d8bb2`and released with version 1.5.3. Users are advised to upgrade. There are no known workarounds for this issue.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00506,"percentile":0.43704,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2023-03-07T18:26:11Z","modified":"2026-10-28T02:31:02Z","products":[{"vendor":"thm","product":"feedbacksystem"},{"vendor":"thm-mni-ii","product":"feedbacksystem"}],"references":[{"url":"https://github.com/thm-mni-ii/feedbacksystem/security/advisories/GHSA-fhq8-p3w6-mmgr","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","advisory"]},{"url":"https://github.com/thm-mni-ii/feedbacksystem/commit/f1ae67d8bb2286a8eb15949038473d41b1358493","tags":["x_refsource_MISC","x_transferred","Patch","fix"]},{"url":"https://github.com/thm-mni-ii/feedbacksystem/releases/tag/v1.5.3","tags":["x_refsource_MISC","x_transferred","Release Notes","web"]},{"url":"https://thm-mni-ii.github.io/feedbacksystem/api-docs/#tag/Submission/operation/getCourseTaskSubmissionSubresults","tags":["x_refsource_MISC","x_transferred","Product","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27485.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27485","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-27485","title":"Insufficient verification of authorisation when accessing subresults in thmmniii/fbs-core","description":"thmmniii/fbs-core is an open source feedback system for students. In versions prior to 1.5.3 when querying `subresults`, it is possible to query `subresults` from other users due to insufficient authorisation. This is only possible for logged-in users and it is not possible to associate the subresults with a specific user. This bug was fixed in commit `f1ae67d8bb2`and released with version 1.5.3. Users are advised to upgrade. There are no known workarounds for this issue.","status":"published","published":"2023-03-07T18:26:11.365Z","modified":"2025-02-25T15:00:16.5Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:35:26.63732Z"}],"euvd":[{"id":"EUVD-2023-31252","description":"thmmniii/fbs-core is an open source feedback system for students. In versions prior to 1.5.3 when querying `subresults`, it is possible to query `subresults` from other users due to insufficient authorisation. This is only possible for logged-in users and it is not possible to associate the subresults with a specific user. This bug was fixed in commit `f1ae67d8bb2`and released with version 1.5.3. Users are advised to upgrade. There are no known workarounds for this issue.","status":"published","published":"2023-03-07T18:26:11Z","modified":"2025-02-25T15:00:16Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:53:24.646946Z"}],"nvd":[{"id":"CVE-2023-27485","description":"thmmniii/fbs-core is an open source feedback system for students. In versions prior to 1.5.3 when querying `subresults`, it is possible to query `subresults` from other users due to insufficient authorisation. This is only possible for logged-in users and it is not possible to associate the subresults with a specific user. This bug was fixed in commit `f1ae67d8bb2`and released with version 1.5.3. Users are advised to upgrade. There are no known workarounds for this issue.","status":"published","published":"2023-03-07T19:15:12.833Z","modified":"2026-06-17T05:45:18.573Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:07:48.342507Z"}],"osv":[{"id":"CVE-2023-27485","title":"Insufficient verification of authorisation when accessing subresults in thmmniii/fbs-core","description":"thmmniii/fbs-core is an open source feedback system for students. In versions prior to 1.5.3 when querying `subresults`, it is possible to query `subresults` from other users due to insufficient authorisation. This is only possible for logged-in users and it is not possible to associate the subresults with a specific user. This bug was fixed in commit `f1ae67d8bb2`and released with version 1.5.3. Users are advised to upgrade. There are no known workarounds for this issue.","status":"published","published":"2023-03-07T18:26:11.365Z","modified":"2026-10-28T02:31:02.604826967Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:44:31.135751Z"}]}}