CVE-2025-47888Network attack vector

Webhook data interception via disabled TLS validation

Published May 14, 2025 · Updated May 15, 2025

Improper certificate validation in Jenkins DingTalk Plugin 2.7.3 and earlier allows man-in-the-middle attackers to read or alter webhook data. The webhook connection path unconditionally accepts untrusted server certificates and hostnames that do not match the certificate. An attacker must intercept Jenkins-to-DingTalk network traffic; exposure is limited to webhook confidentiality and integrity.

CVSS severity5.9
Medium
EPSS probability0.23%
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 certificate validation in Jenkins DingTalk Plugin 2.7.3 and earlier allows man-in-the-middle attackers to read or alter webhook data. The webhook connection path unconditionally accepts untrusted server certificates and hostnames that do not match the certificate. An attacker must intercept Jenkins-to-DingTalk network traffic; exposure is limited to webhook confidentiality and integrity.

The record

CVE
CVE-2025-47888
Published
May 14, 2025
Updated
May 15, 2025
Vendor
Jenkins Project
Product
DingTalk
Classifications
CWE-20, T1557
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. May 14, 2025CVE publishedPublication date reported by the CVE source.
  2. May 15, 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=0 <=2.7.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Jenkins Project · DingTalkversion=0 <=2.7.3

Published CVSS scores

5.9CISA-ADPCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1557Adversary-in-the-Middle

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

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