CVE-2026-84232Network attack vector

Stored XSS via inline uploaded content rendering

Published Sep 1, 2026 · Updated Sep 2, 2026

Stored XSS in Red Hat Satellite 6 allows remote authenticated users to run JavaScript in a victim's browser through uploaded HTML or SVG. The pulpcore aiohttp content server preserves browser-executable MIME types and omits Content-Disposition for files on local filesystem storage. Exploitation requires file-upload permission and a victim to visit the same-origin content URL; script access lasts only for the active browser session.

CVSS severity5.4
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Red Hat Satellite 6 allows remote authenticated users to run JavaScript in a victim's browser through uploaded HTML or SVG. The pulpcore aiohttp content server preserves browser-executable MIME types and omits Content-Disposition for files on local filesystem storage. Exploitation requires file-upload permission and a victim to visit the same-origin content URL; script access lasts only for the active browser session.

The record

CVE
CVE-2026-84232
Published
Sep 1, 2026
Updated
Sep 2, 2026
Vendor
389 Directory Server
Product
Red Hat Satellite
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

389 Directory Server · Red Hat SatelliteAffected versions are unavailable in this record.

Published CVSS scores

5.4Red HatCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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