CVE-2026-27835
CVE-2026-27835 is a medium-severity vulnerability in Wger with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.
Key facts
- Severity: Medium (CVSS 3.x base score 4.3)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-8898
- Weakness: CWE-639
- Affected product: Wger
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-27835?
- 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.
- How severe is CVE-2026-27835?
- CVE-2026-27835 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2026-27835 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-27835?
- CVE-2026-27835 affects Wger. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-27835?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-27835 have an EU (EUVD) identifier?
- Yes. CVE-2026-27835 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8898.
- When was CVE-2026-27835 published?
- CVE-2026-27835 was published on 2026-02-26 and last updated on 2026-06-17.
References
- https://github.com/wger-project/wger/commit/1fda5690b35706bb137850c8a084ec6a13317b64
- https://github.com/wger-project/wger/security/advisories/GHSA-xf68-8hjw-7mpm
Affected products (1)
- cpe:2.3:a:wger:wger:*:*:*:*:*:*:*:*
More vulnerabilities in Wger
- CVE-2022-2650 — Critical (CVSS 9.8): Improper Restriction of Excessive Authentication Attempts in GitHub repository wger-project/wger prior to 2.2.
- CVE-2026-40474 — High (CVSS 7.6): wger is a free, open-source workout and fitness manager. In versions 2.5 and below, the GymConfigUpdateView declares…
- CVE-2026-40353 — Medium (CVSS 5.4): wger is a free, open-source workout and fitness manager. In versions 2.5 and below, the attribution_link property in…
- CVE-2026-27839 — Medium (CVSS 4.3): wger is a free, open-source workout and fitness manager. In versions up to and including 2.4, three…
- CVE-2026-27838 — Low (CVSS 3.1): wger is a free, open-source workout and fitness manager. Five routine detail action endpoints check a cache before…
Other CWE-639 (Authorization Bypass Through User-Controlled Key (IDOR)) vulnerabilities
- CVE-2025-40805 — Critical (CVSS 10.0): Affected devices do not properly enforce user authentication on specific API endpoints. This could facilitate an…
- CVE-2024-45032 — Critical (CVSS 10.0): A vulnerability has been identified in Industrial Edge Management Pro (All versions < V1.9.5), Industrial Edge…
- CVE-2026-34037 — Critical (CVSS 9.9): Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to…
- CVE-2026-52782 — Critical (CVSS 9.9): OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, there is an IDOR through…
- CVE-2026-45552 — Critical (CVSS 9.9): Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior,…
- CVE-2026-29200 — Critical (CVSS 9.9): A critical IDOR vulnerability has been discovered in Comet Backup affecting all versions from 20.11.0 to 26.1.1 and…
Browse all CWE-639 (Authorization Bypass Through User-Controlled Key (IDOR)) vulnerabilities →