CVE-2015-1313Public exploitNetwork attack vector

Unauthenticated account creation via exposed registration handler

Published Jun 29, 2023 · Updated Nov 26, 2024

Authentication bypass in JetBrains TeamCity 8.0.1 through 9.0.1 allows remote attackers to create accounts via a crafted request. The /registerUserSubmit.html handler accepts registration submissions even when administrators disable new-user registration, while the login page exposes the browser-side cryptographic material needed to construct them. Unauthenticated HTTP access is sufficient; the resulting account can access server data and, depending on assigned permissions, start or alter builds.

CVSS severity6.5
Medium
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in JetBrains TeamCity 8.0.1 through 9.0.1 allows remote attackers to create accounts via a crafted request. The /registerUserSubmit.html handler accepts registration submissions even when administrators disable new-user registration, while the login page exposes the browser-side cryptographic material needed to construct them. Unauthenticated HTTP access is sufficient; the resulting account can access server data and, depending on assigned permissions, start or alter builds.

The record

CVE
CVE-2015-1313
Published
Jun 29, 2023
Updated
Nov 26, 2024
Vendor
JetBrains
Product
TeamCity
Classifications
CWE-425, T1136
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 26, 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=8.0.1 <9.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JetBrains · TeamCityversion=8.0.1 <9.0.2

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-425Direct Request ('Forced Browsing')
T1136Create Account

Public exploit references

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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