{"id":"CVE-2026-27838","state":"PUBLISHED","title":"wger: IDOR via user-unscoped cache keys on routine API actions exposes workout data","description":"wger is a free, open-source workout and fitness manager. Five routine detail action endpoints check a cache before calling `self.get_object()`. In versions up to and including 2.4, ache keys are scoped only by `pk` — no user ID is included. When a victim has previously accessed their routine via the API, an attacker can retrieve the cached response for the same PK without any ownership check. Commit e964328784e2ee2830a1991d69fadbce86ac9fbf contains a patch for the issue.","publishedAt":"2026-02-26T22:04:57.968Z","updatedAt":"2026-03-03T01:37:38.975Z","severity":{"score":3.1,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["wger-project wger"],"affected":[{"vendor":"wger-project","product":"wger","versions":[{"version":"<= 2.4","status":"affected"}]}],"references":["https://github.com/wger-project/wger/security/advisories/GHSA-42cr-w2gr-m54q","https://github.com/wger-project/wger/commit/e964328784e2ee2830a1991d69fadbce86ac9fbf"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/27xxx/CVE-2026-27838.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-27838","state":"PUBLISHED","datePublished":"2026-02-26T22:04:57.968Z","dateUpdated":"2026-03-03T01:37:38.975Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-02-24T02:32:39.801Z"},"containers":{"cna":{"title":"wger: IDOR via user-unscoped cache keys on routine API actions exposes workout data","descriptions":[{"lang":"en","value":"wger is a free, open-source workout and fitness manager. Five routine detail action endpoints check a cache before calling `self.get_object()`. In versions up to and including 2.4, ache keys are scoped only by `pk` — no user ID is included. When a victim has previously accessed their routine via the API, an attacker can retrieve the cached response for the same PK without any ownership check. Commit e964328784e2ee2830a1991d69fadbce86ac9fbf contains a patch for the issue."}],"affected":[{"vendor":"wger-project","product":"wger","versions":[{"version":"<= 2.4","status":"affected"}]}],"references":[{"url":"https://github.com/wger-project/wger/security/advisories/GHSA-42cr-w2gr-m54q","name":"https://github.com/wger-project/wger/security/advisories/GHSA-42cr-w2gr-m54q","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/wger-project/wger/commit/e964328784e2ee2830a1991d69fadbce86ac9fbf","name":"https://github.com/wger-project/wger/commit/e964328784e2ee2830a1991d69fadbce86ac9fbf","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.1,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-02-26T22:04:57.968Z"},"source":{"advisory":"GHSA-42cr-w2gr-m54q","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-03T01:37:27.777120Z","id":"CVE-2026-27838","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":"2026-03-03T01:37:38.975Z"}}]}}}