{"id":"CVE-2026-43976","state":"PUBLISHED","title":"wger: cross-tenant admin notes/contracts leak via gym=None bypass (5 views)","description":"wger is a free, open-source workout and fitness manager. Prior to version 2.6, five gym management views in wger apply a flawed gym-scope guard (`gym_a != gym_b`) that silently passes when both operands are `None`. A trainer with `gym.gym_trainer` and `gym.add_adminusernote` permissions and no gym assignment (`gym=None`) can read private admin notes, uploaded documents, gym contracts, user configuration, and user permission data for **any other unaffiliated user** on the instance. The subsequent querysets filter only on the attacker-supplied `member_id` with no secondary gym-scoped validation, so all records are disclosed. Version 2.6 fixes the issue.","publishedAt":"2026-10-07T13:33:11.008Z","updatedAt":"2026-10-07T17:26:56.782Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["wger-project wger"],"affected":[{"vendor":"wger-project","product":"wger","versions":[{"version":"< 2.6","status":"affected"}]}],"references":["https://github.com/wger-project/wger/security/advisories/GHSA-c72h-82w6-rqfp","https://github.com/wger-project/wger/releases/tag/2.6"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43976.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43976","state":"PUBLISHED","datePublished":"2026-10-07T13:33:11.008Z","dateUpdated":"2026-10-07T17:26:56.782Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-04T20:24:31.915Z"},"containers":{"cna":{"title":"wger: cross-tenant admin notes/contracts leak via gym=None bypass (5 views)","descriptions":[{"lang":"en","value":"wger is a free, open-source workout and fitness manager. Prior to version 2.6, five gym management views in wger apply a flawed gym-scope guard (`gym_a != gym_b`) that silently passes when both operands are `None`. A trainer with `gym.gym_trainer` and `gym.add_adminusernote` permissions and no gym assignment (`gym=None`) can read private admin notes, uploaded documents, gym contracts, user configuration, and user permission data for **any other unaffiliated user** on the instance. The subsequent querysets filter only on the attacker-supplied `member_id` with no secondary gym-scoped validation, so all records are disclosed. Version 2.6 fixes the issue."}],"affected":[{"vendor":"wger-project","product":"wger","versions":[{"version":"< 2.6","status":"affected"}]}],"references":[{"url":"https://github.com/wger-project/wger/security/advisories/GHSA-c72h-82w6-rqfp","name":"https://github.com/wger-project/wger/security/advisories/GHSA-c72h-82w6-rqfp","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/wger-project/wger/releases/tag/2.6","name":"https://github.com/wger-project/wger/releases/tag/2.6","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-07T13:33:11.008Z"},"source":{"advisory":"GHSA-c72h-82w6-rqfp","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/wger-project/wger/security/advisories/GHSA-c72h-82w6-rqfp","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-07T17:22:26.839960Z","id":"CVE-2026-43976","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-07T17:26:56.782Z"}}]}}}