1Panel-dev CordysCRM up to 1.7.3 AttachmentService AttachmentService.getResource ID improper authorization

Summaryinfo

A vulnerability marked as problematic has been reported in 1Panel-dev CordysCRM up to 1.7.3. Affected by this vulnerability is the function AttachmentService.getResource of the component AttachmentService. This manipulation of the argument ID causes improper authorization. This vulnerability appears as CVE-2026-76902. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in 1Panel-dev CordysCRM up to 1.7.3 and classified as problematic. Affected by this vulnerability is the function AttachmentService.getResource of the component AttachmentService. The manipulation of the argument id with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality. The summary by CVE is:

CordysCRM is an open source AI-powered customer relationship management system that supports private deployment. Prior to 1.7.4, ShiroFilter configures /attachment/preview/{id} and /pic/preview/{id} as anonymous, and both routes call AttachmentService.getResource, which performs a bare primary-key lookup without ownership, organization, or permission checks. An unauthenticated caller who guesses or observes an id generated by IDGenerator.nextStr can download files uploaded by users in other organizations because the stored organization id is used only to locate the file rather than authorize the caller. This issue is fixed in version 1.7.4.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-76902 since 08/20/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 1.7.4 eliminates this vulnerability.

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Productinfo

Vendor

• 1Panel-dev

Name

• CordysCRM

Version

• 1.7.0
• 1.7.1
• 1.7.2
• 1.7.3

Website

• Product: https://github.com/1Panel-dev/CordysCRM/

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