CVE-2026-22235Network attack vector

Unauthenticated file disclosure via predictable charge numbers

Published Jan 8, 2026 · Updated Jan 8, 2026

Authorization bypass in OPEXUS eCASE eComplaint before 9.0.45.0 allows remote attackers to download files by guessing identifiers. The DocumentOpen.aspx endpoint accepts a predictable chargeNumber value and returns the associated document without enforcing object-level authorization. No authentication or user interaction is required, and enumeration exposes documents from other complaint cases while leaving integrity and availability unaffected.

CVSS severity8.7
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in OPEXUS eCASE eComplaint before 9.0.45.0 allows remote attackers to download files by guessing identifiers. The DocumentOpen.aspx endpoint accepts a predictable chargeNumber value and returns the associated document without enforcing object-level authorization. No authentication or user interaction is required, and enumeration exposes documents from other complaint cases while leaving integrity and availability unaffected.

The record

CVE
CVE-2026-22235
Published
Jan 8, 2026
Updated
Jan 8, 2026
Vendor
OPEXUS
Product
eCASE eComplaint
Classifications
CWE-639, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 8, 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=0 <9.0.45.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OPEXUS · eCASE eComplaintversion=0 <9.0.45.0

Published CVSS scores

7.5CISA CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7CISA CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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