Medium severity · published Feb 26, 2026
CVE-2026-27835
wger: IDOR in RepetitionsConfig and MaxRepetitionsConfig API leak other users' workout data
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WG
wger · wger-project
<= 2.4 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-27835
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-27835
Patch
https://github.com/wger-project/wger/commit/1fda5690b35706bb137850c8a084ec6a13317b64
Exploit
https://github.com/wger-project/wger/security/advisories/GHSA-xf68-8hjw-7mpm
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