ArnasDon Wacrm up to 0.7.0 Flow/Automation Write Routes route.ts improper authorization

Summaryinfo

A vulnerability described as problematic has been identified in ArnasDon Wacrm up to 0.7.0. This impacts an unknown function of the file src/app/api/flows/[id]/route.ts of the component Flow/Automation Write Routes. Such manipulation leads to improper authorization. This vulnerability is documented as CVE-2026-77239. The attack can be executed remotely. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in ArnasDon Wacrm up to 0.7.0. It has been rated as problematic. Affected by this issue is an unknown code block of the file src/app/api/flows/[id]/route.ts of the component Flow/Automation Write Routes. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity, and availability. CVE summarizes:

WACRM is a self-hostable CRM template for WhatsApp. In version 0.7.0 and earlier, WACRM flow and automation write routes authenticate account viewers but do not enforce the agent role before using a service-role database client that bypasses row-level security. In src/app/api/flows/[id]/route.ts, src/app/api/flows/[id]/activate/route.ts, and src/app/api/flows/route.ts, a viewer can create, edit, activate, or delete flows because membership-only checks are followed by service-role writes. In src/app/api/automations/route.ts and src/app/api/automations/engine/route.ts, a viewer can create active automations and trigger outbound WhatsApp actions without the role required by the underlying write policies. This can permit unauthorized workflow changes, destructive flow deletion, and outbound actions from a role intended to be read-only. This vulnerability is fixed with commit 03e851bea56dcf6bb21ff1b80ba531372bf3269f.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-77239 since 08/20/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1548.002.

Applying the patch 03e851bea56dcf6bb21ff1b80ba531372bf3269f is able to eliminate this problem.

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Productinfo

Vendor

• ArnasDon

Name

• Wacrm

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7.0

Website

• Product: https://github.com/ArnasDon/wacrm/

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