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Advisory record · GHSA-9ffp-22j7-56r2

JHipster: Generated Applications Allow Stored XSS via Unrestricted Blob ContentType Opened as Same-Origin Blob

CVSS 7.6 HighEPSS 0.0032 · 25th percentile

Published by the GitHub Advisory Database at 8 Oct 2026, 17:40 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
generator-jhipsternpm<9.4.09.4.0
react-jhipsternpm<1.1.01.1.0
Identifiers
GHSA-9ffp-22j7-56r2 · CVE-2026-107303
Weakness (CWE)
CWE-79
Tags
Published
8 Oct 2026
Updated
8 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Generated applications from generator-jhipster before 9.4.0 and react-jhipster before 1.1.0 store user-supplied Blob content types and open them as same-origin documents. An authenticated user who can write a Blob-bearing entity can store active content that a privileged user may open, enabling possible cross-site scripting depending on CSP and browser behavior. Upgrade generator-jhipster to 9.4.0 and react-jhipster to 1.1.0.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.6 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0032, the 25th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 13:33 UTC First seen by agentprime
  2. 31 Oct 2026, 13:33 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.