{"id":"CVE-2026-43977","summary":"wger IDOR: Authenticated Users Can Read Others' Private Workout Session Data via Template Routine API","details":"wger is a free, open-source workout and fitness manager. In versions prior to 2.6, any authenticated user can read another user's private workout session notes, exercise history, and training statistics by calling the /logs/ and /stats/ actions on a routine they do not own. The vulnerability exists in RoutineViewSet (wger/manager/api/views.py). The view defines two custom actions /logs/ and /stats/ that are intended to return data for the requesting user's own training history within a routine. However, the underlying permission check (RoutinePermission.has_object_permission) grants read access to any authenticated user when the routine has is_template=True, regardless of ownership. When the /logs/ or /stats/ actions are invoked against a routine the attacker does not own, they return the owner's private workout history, not the attacker's. This issue has been fixed in version 2.6.","aliases":["GHSA-cj9g-27ph-4cgv","PYSEC-2026-3421"],"modified":"2026-07-19T03:31:16.914889719Z","published":"2026-07-16T22:13:12.238Z","database_specific":{"cwe_ids":["CWE-639","CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43977.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43977.json"},{"type":"ADVISORY","url":"https://github.com/wger-project/wger/security/advisories/GHSA-cj9g-27ph-4cgv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43977"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wger-project/wger","events":[{"introduced":"0"},{"fixed":"e1d70bcc38cd56ae4a254dca1713c404d069f319"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.6"}],"source":"AFFECTED_FIELD"}}],"versions":["2.5","2.4","2.3","2.0","1.9","1.8","1.7","1.5","1.4","1.3","1.2","1.1","1.0.3","1.0.2","1.0.1","1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43977.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}