{"cve":"CVE-2026-46438","nvd":{"published":"2026-10-07T14:17:10.650","modified":"2026-10-07T19:17:37.280","status":"Deferred","description":"wger is a free, open-source workout and fitness manager. Prior to version 2.6, an authenticated attacker can inject arbitrary workout log entries into any other user's `SlotEntry` by supplying the victim's `slot_entry` ID in a `POST /api/v2/workoutlog/` request. The `slot_entry` foreign key is not included in the ownership verification performed by `WorkoutLogViewSet.get_owner_objects()`, so the server accepts and persists the cross-user reference without error. Because `SlotEntry.get_config_data()` retrieves associated logs via `self.workoutlog_set.all()` with no user filter, the attacker's injected data is silently folded into the victim's progressive-overload calculations, corrupting their auto-generated weight and repetition targets. Version 2.6 contains a patch.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","score":6.5},"cwes":["CWE-639","CWE-862"],"references":["https://github.com/wger-project/wger/releases/tag/2.6","https://github.com/wger-project/wger/security/advisories/GHSA-rjpf-7pf5-q54x","https://github.com/wger-project/wger/security/advisories/GHSA-rjpf-7pf5-q54x"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:58:01.639778232+00:00"},"epss":{"cve":"CVE-2026-46438","score":0.00227,"percentile":0.13319,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-rjpf-7pf5-q54x","url":"https://osv.dev/vulnerability/GHSA-rjpf-7pf5-q54x","summary":"wger: Cross-User Data Corruption via Missing Ownership Check on WorkoutLog.slot_entry","modified":"2026-10-26T16:00:25.744776897Z","packages":[{"ecosystem":"PyPI","name":"wger","purl":"pkg:pypi/wger","ranges":["<=2.1"],"fixed":[]}]},{"id":"PYSEC-2026-4314","url":"https://osv.dev/vulnerability/PYSEC-2026-4314","summary":"wger: Cross-User Data Corruption via Missing Ownership Check on WorkoutLog.slot_entry","modified":"2026-10-15T14:45:10.345926009Z","packages":[{"ecosystem":"PyPI","name":"wger","purl":"pkg:pypi/wger","ranges":["<=2.1"],"fixed":[]}]}],"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."]}