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

published 2026-09-18 51 d ago modified 2026-09-24 45 d ago also EUVD-2026-83372

cvss: 5.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits: 0; none known

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.

Patch / fix

links 3

github.com/1Panel-dev/CordysCRM@3d1f68b commit
github.com/1Panel-dev/CordysCRM#2978 pull request
github.com/1Panel-dev/CordysCRM/releases/tag/v1.7.4 release

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 48 d ago (2026-09-21)

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Affected products

1Panel-dev CordysCRM

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality
CWE-862 Missing Authorization

References

Sources

CVE List CVE-2026-76902
NVD CVE-2026-76902

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary