CVE-2026-86256

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Source

https://cve.org/CVERecord?id=CVE-2026-86256

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86256.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-86256

Aliases

GHSA-vqv8-j3mj-wjxj

Published

2026-09-06T12:00:30Z

Modified

2026-10-21T03:00:32Z

Severity

5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N CVSS Calculator

Summary

wger before 2.6 Open Redirect via trainer-login next parameter

Details

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.

Database specific

{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-601"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86256.json"
}

References

Affected packages

Git / github.com/wger-project/wger

Affected ranges

Type

GIT

Repo

https://github.com/wger-project/wger

Events

Introduced

Fixed

e1d70bcc38cd56ae4a254dca1713c404d069f319

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.6"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.6"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

1.*

1.0

1.0.1

1.0.2

1.0.3

1.1

1.2

1.3

1.4

1.5

1.7

1.8

1.9

2.*

2.0

2.3

2.4

2.5

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86256.json"