CVE-2026-86256: Schwachstellen-Eintrag (NVD)
wger before 2.6 (affected versions <= 2.5.0) contains an open redirect vulnerability in the trainer_login view (wger/core/views/user.py). After a trainer enters impersonation mode, the view redirects to the user-supplied 'next' GET parameter via HttpResponseRedirect() without validating it with url_has_allowed_host_and_scheme(). An attacker who delivers a crafted link to an authenticated trainer can redirect the trainer's browser to an attacker-controlled domain, enabling phishing and leaking the wger URL structure (including the impersonated user's user_pk) via the Referer header.
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📊 Historien-Charts — Criticals-Trend · Vendors · EPSS-Verteilung
| Tier | 2026-08-29 | 2026-09-06 |
|---|---|---|
| ≥90 % | 4 | 0 |
| ≥50 % | 4 | 0 |
| ≥10 % | 3 | 0 |
| <10 % | 304 | 300 |
CVE-2026-86256 | wger-project Wger up to 2.5.0 Impersonation wger/core/views/user.py trainer_login Next redirect (EUVD-2026-72112)
A vulnerability has been found in wger-project Wger up to 2.5.0 and classified as problematic. This affects the function trainer_login of the file wger/core/views/user.py of the component Impersonation. Performing a manipulation of the argu