What’s Vulnerable › Vulnerabilities

CVE-2026-27835: wger: IDOR in RepetitionsConfig and MaxRepetitionsConfig API leak other users' workout data

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-26 · updated 2026-06-17
• Weakness: CWE-639

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.

Affected products

• wger-project wger: through 2.4

References

• https://github.com/wger-project/wger/commit/1fda5690b35706bb137850c8a084ec6a13317b64
• https://github.com/wger-project/wger/security/advisories/GHSA-xf68-8hjw-7mpm

Get alerted when CVE-2026-27835 or the next vulnerability affects your stack