Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Network-reachable MCP endpoint (AV:N/AC:L), requires an authenticated low-privileged user with a token (PR:L, no UI); high integrity from unauthorized catalog writes, low availability from soft-delete/archive, no data disclosure (C:N).
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Lifecycle Timeline
2DescriptionCVE.org
NextCRM is open-source customer relationship management (CRM) software. The CRM product catalog is an organization-wide business object. Normal application server actions restrict product creation, update, and deletion to manager and admin roles. However, in version 0.12.1, the MCP product tools expose the same write operations through /api/mcp/mcp using user-generated Bearer tokens and do not enforce role checks. Any authenticated low-privileged user who can generate an MCP API token can create, modify, archive, or soft-delete products in the shared CRM product catalog. Version 0.12.3 contains a fix.
AnalysisAI
Improper privilege enforcement in NextCRM 0.12.1 lets any authenticated low-privileged user create, modify, archive, or soft-delete entries in the organization-wide product catalog by calling MCP product tools at /api/mcp/mcp with a self-generated Bearer token. While the standard application server restricts these write operations to manager and admin roles, the MCP interface omits the role checks entirely, giving a vertical privilege escalation over shared business data. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires (1) a NextCRM 0.12.1 deployment with the MCP interface at /api/mcp/mcp enabled, and (2) an authenticated low-privileged account able to generate an MCP API Bearer token - the CVSS PR:L reflects this authenticated prerequisite. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L, score 7.1) is internally consistent with the description: network-reachable, low complexity, requires low privileges (an authenticated user who can mint an MCP token), no user interaction, high integrity impact (unauthorized writes to shared data) and low availability impact (soft-delete/archive can remove products from view). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A low-privileged sales user of a shared NextCRM instance generates an MCP API token from their own account, then sends crafted requests to /api/mcp/mcp invoking the product write tools. Because no role check is enforced on that path, they archive or soft-delete competitors' products, alter pricing/details, or inject bogus catalog entries that every other tenant user sees. … |
| Remediation | Upgrade to NextCRM 0.12.3, which contains the fix (Vendor-released patch: 0.12.3); consult the advisory at https://github.com/pdovhomilja/nextcrm-app/security/advisories/GHSA-wv63-cq38-qg58 for details. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all NextCRM 0.12.1 instances and audit product catalog modification logs for unauthorized changes by low-privileged users. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Nextcrm App
View allPrivilege escalation via broken access control in NextCRM (open-source CRM by pdovhomilja) before version 0.12.0 lets an
Broken access control in NextCRM 0.12.1 lets a low-privileged authenticated user with a valid MCP Bearer API token (`nxt
Cross-tenant data tampering in NextCRM (open-source CRM) before version 0.12.0 lets any authenticated user - including l
Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-46110