CVE-2026-7308Network attack vector

Victim-session actions via stored HTML index script

Published May 11, 2026 · Updated May 11, 2026

Stored XSS in Sonatype Nexus Repository 3.6.0 through 3.91.x allows remote authenticated users to run JavaScript in another user's browser. The built-in HTML directory index emits attacker-uploaded repository content without neutralizing executable markup. Exploitation requires hosted-repository upload permission and a separate user to browse the affected directory, after which the script acts in that user's session.

CVSS severity5.1
Medium
EPSS probability0.27%
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 Sonatype Nexus Repository 3.6.0 through 3.91.x allows remote authenticated users to run JavaScript in another user's browser. The built-in HTML directory index emits attacker-uploaded repository content without neutralizing executable markup. Exploitation requires hosted-repository upload permission and a separate user to browse the affected directory, after which the script acts in that user's session.

The record

CVE
CVE-2026-7308
Published
May 11, 2026
Updated
May 11, 2026
Vendor
Sonatype
Product
Nexus Repository
Classifications
CWE-79, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.6.0 <3.92.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Sonatype · Nexus Repositoryversion=3.6.0 <3.92.0

Published CVSS scores

5.1SonatypeCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1190Exploit Public-Facing Application

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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