CVE-2026-46438

wger is a free, open-source workout and fitness manager. Prior to version 2.6, an authenticated attacker can inject arbitrary workout log entries into any other user's `SlotEntry` by supplying the victim's `slot_entry` ID in a `POST /api/v2/workoutlog/` request. The `slot_entry` foreign key is not included in the ownership verification performed by `WorkoutLogViewSet.get_owner_objects()`, so the server accepts and persists the cross-user reference without error. Because `SlotEntry.get_config_data()` retrieves associated logs via `self.workoutlog_set.all()` with no user filter, the attacker's injected data is silently folded into the victim's progressive-overload calculations, corrupting their auto-generated weight and repetition targets. Version 2.6 contains a patch.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/wger-project/wger/releases/tag/2.6
https://github.com/wger-project/wger/security/advisories/GHSA-rjpf-7pf5-q54x
https://github.com/wger-project/wger/security/advisories/GHSA-rjpf-7pf5-q54x

Configurations

No configuration.

History

07 Oct 2026, 19:17

Type	Values Removed	Values Added
References	~~() https://github.com/wger-project/wger/security/advisories/GHSA-rjpf-7pf5-q54x -~~	() https://github.com/wger-project/wger/security/advisories/GHSA-rjpf-7pf5-q54x -

07 Oct 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-07 14:17

Updated : 2026-10-07 19:17

NVD link : CVE-2026-46438

Mitre link : CVE-2026-46438

CVE.ORG link : CVE-2026-46438

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

CWE-862

Missing Authorization

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