CVE-2026-15630

published 2026-07-23 3 mo ago modified 2026-09-22 47 d ago also EUVD-2026-48418

cvss: 9.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits: 0; none known

A non-global organization admin in one tenant can bypass tenant boundaries to delete, create, or modify resources in any other tenant by exploiting a mismatch between authorization (based on ?id=) and action (based on request body).

Patch / fix

fixed in 1

Casdoor Casdoor v4.2.0

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 3 mo ago (2026-07-27)

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

vokecyber.com https://vokecyber.com/research/cve-2026-15630-casdoor-cross-tenant-authz referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

Casdoor Casdoor

Classification

Weakness

CWE-863 Incorrect Authorization
CWE-269 Improper Privilege Management
CWE-639 Authorization Bypass Through User-Controlled Key

References

Sources

CVE List CVE-2026-15630
NVD CVE-2026-15630

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