CVE-2026-107303 JHipster - Stored XSS

JHipster prior to generator-jhipster 9.4.0 and react-jhipster 1.1.0 contains a stored XSS caused by persisting attacker-controlled Blob data and ContentType values, letting authenticated users with write access execute active HTML or SVG under application origin, exploit depends on CSP and browser Blob behavior.

CVSS base score 7.6 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.26% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Published
8 October 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Upgrade to generator-jhipster 9.4.0 and react-jhipster 1.1.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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