CVE-2025-13787Public exploitNetwork attack vector

Authenticated arbitrary file deletion via unchecked fileID

Published Nov 30, 2025 · Updated Dec 1, 2025

Improper authorization in ZenTao 21.7.6-8564 allows remote authenticated users to delete other users' attachments through fileID. The file::delete method in module/file/control.php accepts a user-controlled fileID, then removes the database record and physical file without checking object access or ownership. An account with file-delete permission and knowledge of another attachment's identifier can destroy that attachment and its audit context.

CVSS severity9.1
Critical
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper authorization in ZenTao 21.7.6-8564 allows remote authenticated users to delete other users' attachments through fileID. The file::delete method in module/file/control.php accepts a user-controlled fileID, then removes the database record and physical file without checking object access or ownership. An account with file-delete permission and knowledge of another attachment's identifier can destroy that attachment and its audit context.

The record

CVE
CVE-2025-13787
Published
Nov 30, 2025
Updated
Dec 1, 2025
Vendor
Qingdao Esoft Tianchuang Network Technology Co., Ltd.
Product
ZenTao
Classifications
CWE-266, CWE-269, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 1, 2025Record 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=21.7.6-8564

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Qingdao Esoft Tianchuang Network Technology Co., Ltd. · ZenTaoversion=21.7.6-8564

Published CVSS scores

9.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
5.5VulDBAV:N/AC:L/Au:S/C:N/I:P/A:P
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
5.4VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

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 exploitPublished

Weakness, pattern, technique

CWE-266Incorrect Privilege Assignment
CWE-269Improper Privilege Management
T1485Data Destruction

Public exploit references

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

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo