CVE-2025-13249Network attack vector

Authenticated unrestricted upload via FileData manipulation

Published Nov 16, 2025 · Updated Nov 17, 2025

Unrestricted file upload in Jiusi OA 20251102 and earlier allows remote authenticated users to upload files through the OfficeServer interface. The /OfficeServer?isAjaxDownloadTemplate=false endpoint accepts attacker-controlled FileData without enforcing upload restrictions; the responsible function is undisclosed. Low-privileged authentication is required, and published evidence does not establish code execution, the storage location, or later processing of uploaded files.

CVSS severity6.3
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Jiusi OA 20251102 and earlier allows remote authenticated users to upload files through the OfficeServer interface. The /OfficeServer?isAjaxDownloadTemplate=false endpoint accepts attacker-controlled FileData without enforcing upload restrictions; the responsible function is undisclosed. Low-privileged authentication is required, and published evidence does not establish code execution, the storage location, or later processing of uploaded files.

The record

CVE
CVE-2025-13249
Published
Nov 16, 2025
Updated
Nov 17, 2025
Vendor
Beijing Jiusi Collaborative Software Co., Ltd.
Product
Jiusi OA
Classifications
CWE-284, CWE-434, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 17, 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?

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

  1. Affected versionversion=20251102

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Beijing Jiusi Collaborative Software Co., Ltd. · Jiusi OAversion=20251102

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

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-284Improper Access Control
CWE-434Unrestricted Upload of File with Dangerous Type
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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