CVE-2024-31137Network attack vector

Browser script execution via Space connection reflection

Published Mar 28, 2024 · Updated Aug 2, 2024

Reflected XSS in JetBrains TeamCity before 2024.03 allows remote attackers to execute script through Space connection configuration. JetBrains identifies the Space connection configuration path but has not published the affected parameter or output-encoding failure that reflects untrusted input. Exploitation requires user interaction, after which script runs in that user's browser context and can access or alter TeamCity data available to the session.

CVSS severity6.8
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in JetBrains TeamCity before 2024.03 allows remote attackers to execute script through Space connection configuration. JetBrains identifies the Space connection configuration path but has not published the affected parameter or output-encoding failure that reflects untrusted input. Exploitation requires user interaction, after which script runs in that user's browser context and can access or alter TeamCity data available to the session.

The record

CVE
CVE-2024-31137
Published
Mar 28, 2024
Updated
Aug 2, 2024
Vendor
JetBrains
Product
TeamCity
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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 <2024.03

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JetBrains · TeamCityversion=0 <2024.03

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.8JetBrainsCVSS:3.1/AV:N/AC:H/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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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