CVE-2026-55544: CWE-284: Improper Access Control in pdovhomilja nextcrm-app
NextCRM version 0.12.1 contains an improper access control vulnerability in its MCP campaign tools. The application uses Bearer API tokens for authentication and restricts normal users to campaigns they created. However, multiple campaign handlers ignore the authenticated user ID and allow operations based solely on campaign object IDs. This flaw enables low-privileged authenticated users to enumerate, read, update, delete, and modify campaigns owned by other users, including campaign templates and steps, and potentially control campaign delivery. Version 0.12.2 addresses this issue.
AI Analysis
Technical Summary
NextCRM (pdovhomilja nextcrm-app) version 0.12.1 suffers from an improper access control vulnerability (CWE-284) in its MCP campaign tools. The system exposes campaign read and write operations over the network using user-generated Bearer API tokens. Although the authorization model is intended to restrict users to their own campaigns, several campaign handlers bypass user ID checks and operate solely by campaign object ID. This allows authenticated users with valid MCP API tokens but low privileges to enumerate all campaigns, access details, modify, delete, and control campaigns owned by others. The vulnerability is fixed in version 0.12.2.
Potential Impact
An attacker with a valid low-privileged MCP API token can access and manipulate campaigns they do not own. This includes reading sensitive campaign details, updating or deleting campaigns, modifying campaign templates and steps, and potentially triggering or pausing campaign delivery. This leads to unauthorized disclosure, modification, and partial denial of service of campaign data and operations.
Mitigation Recommendations
Version 0.12.2 of nextcrm-app fixes this vulnerability by properly enforcing authorization checks on campaign operations. Users should upgrade to version 0.12.2 or later to remediate this issue. No official patch or temporary fix is indicated beyond upgrading. Until upgraded, restrict access to MCP API tokens and monitor for unauthorized campaign modifications.
CVE-2026-55544: CWE-284: Improper Access Control in pdovhomilja nextcrm-app
Description
NextCRM version 0.12.1 contains an improper access control vulnerability in its MCP campaign tools. The application uses Bearer API tokens for authentication and restricts normal users to campaigns they created. However, multiple campaign handlers ignore the authenticated user ID and allow operations based solely on campaign object IDs. This flaw enables low-privileged authenticated users to enumerate, read, update, delete, and modify campaigns owned by other users, including campaign templates and steps, and potentially control campaign delivery. Version 0.12.2 addresses this issue.
CVSS v3.1
Score 7.6high
Affected software
pkg:github/pdovhomilja/nextcrm-appRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
NextCRM (pdovhomilja nextcrm-app) version 0.12.1 suffers from an improper access control vulnerability (CWE-284) in its MCP campaign tools. The system exposes campaign read and write operations over the network using user-generated Bearer API tokens. Although the authorization model is intended to restrict users to their own campaigns, several campaign handlers bypass user ID checks and operate solely by campaign object ID. This allows authenticated users with valid MCP API tokens but low privileges to enumerate all campaigns, access details, modify, delete, and control campaigns owned by others. The vulnerability is fixed in version 0.12.2.
Potential Impact
An attacker with a valid low-privileged MCP API token can access and manipulate campaigns they do not own. This includes reading sensitive campaign details, updating or deleting campaigns, modifying campaign templates and steps, and potentially triggering or pausing campaign delivery. This leads to unauthorized disclosure, modification, and partial denial of service of campaign data and operations.
Mitigation Recommendations
Version 0.12.2 of nextcrm-app fixes this vulnerability by properly enforcing authorization checks on campaign operations. Users should upgrade to version 0.12.2 or later to remediate this issue. No official patch or temporary fix is indicated beyond upgrading. Until upgraded, restrict access to MCP API tokens and monitor for unauthorized campaign modifications.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-16T23:01:04.074Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5e92bf2a4a8d5989c43576
Added to database: 07/20/2026, 21:27:27 UTC
Last enriched: 07/20/2026, 21:41:45 UTC
Last updated: 07/21/2026, 05:25:17 UTC
Views: 13
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