{"id":"CVE-2026-46438","title":"wger is a free, open-source workout and fitness manager","summary":"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…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-639","CWE-862"],"vendor":"wger","product":"wger","affected":["wger <= 2.1"],"published":"2026-10-07","updated":"2026-10-07","sourceUpdated":"2026-10-07T14:46:03.387","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-46438","references":[{"url":"https://github.com/wger-project/wger/releases/tag/2.6","label":"security-advisories@github.com"},{"url":"https://github.com/wger-project/wger/security/advisories/GHSA-rjpf-7pf5-q54x","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-rjpf-7pf5-q54x"}],"tags":["nvd","ghsa","pip","cve.org"],"aliases":["GHSA-rjpf-7pf5-q54x"],"ecosystem":"pip","ingestedAt":"2026-10-07T14:33:21.955Z","slug":"CVE-2026-46438","body":"## Overview\n\nwger 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-46438)\n\nAffected packages:\n\n- `wger <= 2.1`\n\nSource: https://github.com/advisories/GHSA-rjpf-7pf5-q54x","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}