CVE-2025-53959Network attack vector

Email spoofing via missing administrative API authorization

Published Jul 15, 2025 · Updated Jul 15, 2025

Missing authorization in JetBrains YouTrack before 2024.3.85077, 2025.1.86199, and 2025.2.86069 allows remote authenticated users to spoof email. The administrative API permits nonadministrative callers to send messages with forged sender information, but JetBrains has not published the endpoint or omitted authorization operation. A low-privilege account and recipient interaction are required; the bounded consequence is trusted-origin phishing rather than server compromise.

CVSS severity7.6
High
EPSS probability0.27%
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

Missing authorization in JetBrains YouTrack before 2024.3.85077, 2025.1.86199, and 2025.2.86069 allows remote authenticated users to spoof email. The administrative API permits nonadministrative callers to send messages with forged sender information, but JetBrains has not published the endpoint or omitted authorization operation. A low-privilege account and recipient interaction are required; the bounded consequence is trusted-origin phishing rather than server compromise.

The record

CVE
CVE-2025-53959
Published
Jul 15, 2025
Updated
Jul 15, 2025
Vendor
JetBrains
Product
YouTrack
Classifications
CWE-862, T1566
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 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 <2025.2.86069, 2024.3.85077, 2025.1.86199

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

JetBrains · YouTrackversion=0 <2025.2.86069, 2024.3.85077, 2025.1.86199

Published CVSS scores

7.6NIST NVDCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1566Phishing

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