CVE-2023-38061Network attack vector

Stored XSS through custom themes

Published Jul 12, 2023 · Updated Oct 23, 2024

Stored XSS in JetBrains TeamCity before 2023.05.1 allows remote authenticated users to execute script in another user’s browser via a custom theme. JetBrains identifies the custom-theme path but has not disclosed the affected field, renderer, or missing neutralization operation. Low-privileged access and another user’s interaction are required; successful exploitation runs script with that viewer’s TeamCity web privileges.

CVSS severity4.6
Medium
EPSS probability1.04%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in JetBrains TeamCity before 2023.05.1 allows remote authenticated users to execute script in another user’s browser via a custom theme. JetBrains identifies the custom-theme path but has not disclosed the affected field, renderer, or missing neutralization operation. Low-privileged access and another user’s interaction are required; successful exploitation runs script with that viewer’s TeamCity web privileges.

The record

CVE
CVE-2023-38061
Published
Jul 12, 2023
Updated
Oct 23, 2024
Vendor
JetBrains
Product
TeamCity
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 23, 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 <2023.05.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

JetBrains · TeamCityversion=0 <2023.05.1

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.6JetBrains s.r.o.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client 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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