CVE-2026-97270Network attack vectorHinoki check available

Stored XSS via unescaped file_list field values

Published Sep 30, 2026 · Updated Sep 30, 2026

Stored XSS in Justin Sternberg CMB2 2.13.0 and earlier allows remote authenticated users to inject script through file_list fields. CMB2 stores file_list values and renders them verbatim instead of sanitizing URLs and escaping output. The source record identifies Subscriber access; exposure depends on a site providing a file_list field the account can submit, and script execution requires someone to view its rendered value.

CVSS severityUnavailable
Unscored
EPSS probability0.17%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Get started

Summary

What happened

Stored XSS in Justin Sternberg CMB2 2.13.0 and earlier allows remote authenticated users to inject script through file_list fields. CMB2 stores file_list values and renders them verbatim instead of sanitizing URLs and escaping output. The source record identifies Subscriber access; exposure depends on a site providing a file_list field the account can submit, and script execution requires someone to view its rendered value.

The record

CVE
CVE-2026-97270
Published
Sep 30, 2026
Updated
Sep 30, 2026
Vendor
Justin Sternberg
Product
CMB2
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=2.13.0 changes=[{"at":"2.13.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Justin Sternberg · CMB2version=n/a <=2.13.0 changes=[{"at":"2.13.1","status":"unaffected"}]

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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

See the directory against your own environment.

Your stack

Check the software in your environment

Get started to see how Hinoki identifies affected software and validates exploitability in your environment.

Get started