wger IDOR: Authenticated Users Can Read Others' Private Workout Session Data via Template Routine API (CVE-2026-43977) | HOL Guard CVE

High · CVSS 7.5CVE-2026-43977

wger IDOR: Authenticated Users Can Read Others' Private Workout Session Data via Template Routine API

Answer in brief

CVE-2026-43977 records a High severity (CVSS 7.5) vulnerability in wger IDOR: Authenticated Users Can Read Others' Private Workout Session Data via Template Routine API. The current sources do not mark it as known exploited. The current feed maps wger-project/wger (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 16, 2026Updated Jul 17, 2026Source checked Sep 19, 2026First seen by HOL Jul 17, 2026Material review Jul 17, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.5
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps wger-project/wger (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
wger-project/wgergeneric	< 2.6	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for wger-project/wger.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Jul 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Jul 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 17, 2026

Sources and claim methodology

GitHub security advisorygithub.com

Upstream source description

wger is a free, open-source workout and fitness manager. In versions prior to 2.6, any authenticated user can read another user's private workout session notes, exercise history, and training statistics by calling the /logs/ and /stats/ actions on a routine they do not own. The vulnerability exists in RoutineViewSet (wger/manager/api/views.py). The view defines two custom actions /logs/ and /stats/ that are intended to return data for the requesting user's own training history within a routine. However, the underlying permission check (RoutinePermission.has_object_permission) grants read access to any authenticated user when the routine has is_template=True, regardless of ownership. When the /logs/ or /stats/ actions are invoked against a routine the attacker does not own, they return the owner's private workout history, not the attacker's. This issue has been fixed in version 2.6.

Quoted source text, attributed separately from HOL analysis.