CVE-2026-55544

{"id": "CVE-2026-55544", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55544", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-22T13:49:36.116703Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 4.7, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "pdovhomilja", "product": "nextcrm-app", "versions": [{"status": "affected", "version": "= 0.12.1"}]}]}], "published": "2026-07-20T22:17:16.407", "references": [{"url": "https://github.com/pdovhomilja/nextcrm-app/security/advisories/GHSA-c9vg-c532-ppqx", "source": "security-advisories@github.com"}, {"url": "https://github.com/pdovhomilja/nextcrm-app/security/advisories/GHSA-c9vg-c532-ppqx", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-284"}, {"lang": "en", "value": "CWE-639"}, {"lang": "en", "value": "CWE-862"}]}], "descriptions": [{"lang": "en", "value": "NextCRM is open-source customer relationship management (CRM) software. In version 0.12.1, the MCP campaign tools expose campaign read and write operations over the network using user-generated Bearer API tokens (`nxtc__...`). The application has an authorization model that restricts normal users to campaigns they created, but multiple MCP campaign handlers ignore the authenticated user ID and query or mutate campaigns only by object ID. As a result, a low-privileged authenticated user with a valid MCP API token can enumerate all campaigns, read campaign details, update or delete campaigns owned by other users, modify campaign templates and steps, and potentially trigger or pause campaign delivery. Version 0.12.2 fixes the issue."}, {"lang": "es", "value": "NextCRM es software de gesti\u00f3n de relaciones con el cliente (CRM) de c\u00f3digo abierto. En la versi\u00f3n 0.12.1, las herramientas de campa\u00f1a de MCP exponen operaciones de lectura y escritura de campa\u00f1as a trav\u00e9s de la red utilizando tokens API Bearer generados por el usuario (\u2019nxtc__...\u2019). La aplicaci\u00f3n tiene un modelo de autorizaci\u00f3n que restringe a los usuarios normales a las campa\u00f1as que crearon, pero m\u00faltiples manejadores de campa\u00f1as de MCP ignoran el ID de usuario autenticado y consultan o mutan campa\u00f1as solo por ID de objeto. Como resultado, un usuario autenticado con bajos privilegios y un token API de MCP v\u00e1lido puede enumerar todas las campa\u00f1as, leer detalles de campa\u00f1as, actualizar o eliminar campa\u00f1as propiedad de otros usuarios, modificar plantillas y pasos de campa\u00f1as, y potencialmente activar o pausar la entrega de campa\u00f1as. La versi\u00f3n 0.12.2 corrige el problema."}], "lastModified": "2026-10-24T20:10:00.137", "sourceIdentifier": "security-advisories@github.com"}