CVE-2026-1884Public exploitNetwork attack vector

Administrator file disclosure via unrestricted webhook protocol

Published Feb 4, 2026 · Updated Feb 4, 2026

SSRF in ZenTao 21.7.6-85642 allows remote authenticated users to read server files through a crafted webhook URL. Webhook fetchHook passes the administrator-controlled URL directly to curl_exec without restricting protocols, then stores the response in logs. Administrator access and an enabled Webhook Module are required; file URLs disclose readable local content but do not modify files or interrupt service.

CVSS severity4.7
Medium
EPSS probability0.40%
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 21.7.6-85642 allows remote authenticated users to read server files through a crafted webhook URL. Webhook fetchHook passes the administrator-controlled URL directly to curl_exec without restricting protocols, then stores the response in logs. Administrator access and an enabled Webhook Module are required; file URLs disclose readable local content but do not modify files or interrupt service.

The record

CVE
CVE-2026-1884
Published
Feb 4, 2026
Updated
Feb 4, 2026
Vendor
Qingdao Esoft Tianchuang Network Technology Co., Ltd.
Product
ZenTao
Classifications
CWE-918, T1005
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 4, 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=21.7.6-85642

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Qingdao Esoft Tianchuang Network Technology Co., Ltd. · ZenTaoversion=21.7.6-85642

Published CVSS scores

4.7VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
2.0VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.8VulDBAV:N/AC:L/Au:M/C:P/I:P/A:P
4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1005Data from Local System

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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