CVE-2026-86256
CVE-2026-86256 · wger before 2.6 Open Redirect via trainer-login next parameter
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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.
CVSS 5.1 · Moyenne · EPSS 0,2% · Correctif disponible
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Pile logicielle: python