CVE-2025-13789Public exploitNetwork attack vector

Authenticated internal network probing via unvalidated AI endpoint

Published Nov 30, 2025 · Updated Dec 1, 2025

SSRF in ZenTao 21.7.6-8564 allows remote authenticated users to probe internal network services through the AI model test endpoint. The modelTestConnection handler passes a user-controlled openaiCompatible base URL to makeRequest, which concatenates it into a cURL destination without validation or private-address restrictions. A valid session is required; response errors and timing reveal reachable internal ports and services.

CVSS severity5.3
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in ZenTao 21.7.6-8564 allows remote authenticated users to probe internal network services through the AI model test endpoint. The modelTestConnection handler passes a user-controlled openaiCompatible base URL to makeRequest, which concatenates it into a cURL destination without validation or private-address restrictions. A valid session is required; response errors and timing reveal reachable internal ports and services.

The record

CVE
CVE-2025-13789
Published
Nov 30, 2025
Updated
Dec 1, 2025
Vendor
Qingdao Esoft Tianchuang Network Technology Co., Ltd.
Product
ZenTao
Classifications
CWE-918, CAPEC-664, T1046
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

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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=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

6.5VulDB CNAAV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C
6.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
5.3VulDB CNACVSS: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
5.3OSVCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.3VulDB CNACVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1046Network Service Discovery

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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