CVE-2025-22931Public exploitNetwork attack vector

Unauthenticated staff-file disclosure via enumerable filenames

Published Apr 3, 2025 · Updated Apr 21, 2025

IDOR in /assets/stafffiles in OS4ED openSIS 7.0 through 9.1 allows remote attackers to read files uploaded by staff members. The web-accessible stafffiles directory stores uploads under predictable staff-ID-and-filename names and serves requested paths without an access-control check. No account or user interaction is required; knowing or enumerating a stored name exposes the corresponding staff-uploaded file, with no reported write access.

CVSS severity7.5
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in /assets/stafffiles in OS4ED openSIS 7.0 through 9.1 allows remote attackers to read files uploaded by staff members. The web-accessible stafffiles directory stores uploads under predictable staff-ID-and-filename names and serves requested paths without an access-control check. No account or user interaction is required; knowing or enumerating a stored name exposes the corresponding staff-uploaded file, with no reported write access.

The record

CVE
CVE-2025-22931
Published
Apr 3, 2025
Updated
Apr 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-639, T1213
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2025Record 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 buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

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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