CVE-2026-76902 CordysCRM: Unauthenticated arbitrary file disclosure via `/attachment/preview/{id}` and `/pic/preview/{id}`

Medium 5.0 Published Updated

Unauthenticated attackers can download files from other organizations by accessing preview endpoints without proper ownership checks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-76902?

CVE-2026-76902 is a medium-severity missing authorization vulnerability in 1Panel-dev CordysCRM, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-862, CWE-306

Which versions are affected by CVE-2026-76902?

How do I fix CVE-2026-76902?

No fix has been published for CVE-2026-76902 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-76902 being exploited?

There is no known exploitation of CVE-2026-76902 in the wild and no public exploit code.

Sources

Also known as GHSA-93p7-j9r5-jc7q.

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