CVE-2024-49579Network attack vector

Arbitrary JavaScript execution via insecure plugin iframe

Published Oct 17, 2024 · Updated Oct 17, 2024

Improper channel verification in JetBrains YouTrack before 2024.3.47197 allows remote attackers to execute JavaScript through a plugin iframe. The iframe accepts content from an unverified source and runs its JavaScript in a context that can issue unauthorized YouTrack API requests. Exploitation requires user interaction; successful code can expose or change data accessible through the user's API session, without interrupting service.

CVSS severity8.1
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper channel verification in JetBrains YouTrack before 2024.3.47197 allows remote attackers to execute JavaScript through a plugin iframe. The iframe accepts content from an unverified source and runs its JavaScript in a context that can issue unauthorized YouTrack API requests. Exploitation requires user interaction; successful code can expose or change data accessible through the user's API session, without interrupting service.

The record

CVE
CVE-2024-49579
Published
Oct 17, 2024
Updated
Oct 17, 2024
Vendor
JetBrains
Product
YouTrack
Classifications
CWE-940, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 2024Record 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=0 <2024.3.47197

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JetBrains · YouTrackversion=0 <2024.3.47197

Published CVSS scores

8.1JetBrainsCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-940Improper Verification of Source of a Communication Channel
T1204User Execution

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

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Your stack

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