pdovhomilja NextCRM up to 0.12.1 Campaign improper authorization

Summaryinfo

A vulnerability has been found in pdovhomilja NextCRM up to 0.12.1 and classified as critical. Affected is an unknown function of the component Campaign Handler. Performing a manipulation results in improper authorization. This vulnerability is known as CVE-2026-55544. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in pdovhomilja NextCRM up to 0.12.1. This affects an unknown part of the component Campaign Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-55544 since 06/17/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 0.12.2 eliminates this vulnerability.

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Productinfo

Vendor

• pdovhomilja

Name

• NextCRM

Version

• 0.12.0
• 0.12.1

CPE 2.3info

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CPE 2.2info

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