CVE-2026-43977

{
  "id": "CVE-2026-43977",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-16T23:16:16.167",
  "lastModified": "2026-10-24T20:10:00.137",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "wger es un gestor de entrenamientos y fitness gratuito y de código abierto. En versiones anteriores a la 2.6, cualquier usuario autenticado puede leer las notas privadas de la sesión de entrenamiento de otro usuario, el historial de ejercicios y las estadísticas de entrenamiento llamando a las acciones /logs/ y /stats/ en una rutina que no les pertenece. La vulnerabilidad existe en RoutineViewSet (wger/manager/api/views.py). La vista define dos acciones personalizadas /logs/ y /stats/ que están destinadas a devolver datos para el historial de entrenamiento del propio usuario solicitante dentro de una rutina. Sin embargo, la comprobación de permisos subyacente (RoutinePermission.has_object_permission) otorga acceso de lectura a cualquier usuario autenticado cuando la rutina tiene is_template=True, independientemente de la propiedad. Cuando se invocan las acciones /logs/ o /stats/ contra una rutina que el atacante no posee, devuelven el historial de entrenamiento privado del propietario, no el del atacante. Este problema se ha solucionado en la versión 2.6."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "wger-project",
          "product": "wger",
          "versions": [
            {
              "version": "< 2.6",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-17T13:14:26.159335Z",
          "id": "CVE-2026-43977",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        },
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/wger-project/wger/security/advisories/GHSA-cj9g-27ph-4cgv",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/wger-project/wger/security/advisories/GHSA-cj9g-27ph-4cgv",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}