Wger
CVE-2026-27835
MEDIUM
GHSA-xf68-8hjw-7mpm
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
4DescriptionGitHub Advisory
wger is a free, open-source workout and fitness manager. In versions up to and including 2.4, RepetitionsConfigViewSet and MaxRepetitionsConfigViewSet return all users' repetition config data because their get_queryset() calls .all() instead of filtering by the authenticated user. Any registered user can enumerate every other user's workout structure. Commit 1fda5690b35706bb137850c8a084ec6a13317b64 contains a fix for the issue.
AnalysisAI
Wger versions up to 2.4 expose all users' repetition configuration data to any authenticated attacker due to missing authorization checks in the RepetitionsConfigViewSet and MaxRepetitionsConfigViewSet endpoints. A registered user can enumerate the complete workout structures of all other users on the platform. Public exploit code exists for this vulnerability, and a patch is available.
Technical ContextAI
Classified as CWE-639 (Authorization Bypass Through User-Controlled Key). Affects Wger. wger is a free, open-source workout and fitness manager. In versions up to and including 2.4, RepetitionsConfigViewSet and MaxRepetitionsConfigViewSet return all users' repetition config data because their get_queryset() calls .all() instead of filtering by the authenticated user. Any registered user can enumerate every other user's workout structure. Commit 1fda5690b35706bb137850c8a084ec6a13317b64 contains a fix for the issue.
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
Improper Restriction of Excessive Authentication Attempts in GitHub repository wger-project/wger prior to 2.2. Rated cri
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Same technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today