CVE-2026-26002Network attack vector

Authenticated script execution via unsanitized Files HTML

Published Mar 4, 2026 · Updated Mar 4, 2026

HTML injection in the Open OnDemand Files application before 4.0.9 and 4.1.0 through 4.1.2 allows remote authenticated users to execute scripts. The Files data table inserts returned breadcrumb and shell-menu HTML into the DOM and accepts javascript, data, and vbscript links without filtering. Low-privileged portal access is required; crafted navigation input can run code in the application origin and expose or alter session-accessible data.

CVSS severity9.8
Critical
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in the Open OnDemand Files application before 4.0.9 and 4.1.0 through 4.1.2 allows remote authenticated users to execute scripts. The Files data table inserts returned breadcrumb and shell-menu HTML into the DOM and accepts javascript, data, and vbscript links without filtering. Low-privileged portal access is required; crafted navigation input can run code in the application origin and expose or alter session-accessible data.

The record

CVE
CVE-2026-26002
Published
Mar 4, 2026
Updated
Mar 4, 2026
Vendor
Ohio Supercomputer Center
Product
Open OnDemand
Classifications
CWE-74, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 4, 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=< 4.0.9
  2. Affected versionversion=>= 4.1.0, < 4.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ohio Supercomputer Center · Open OnDemandversion=< 4.0.9; version=>= 4.1.0, < 4.1.3

Published CVSS scores

6.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
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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