# CVE-2015-1313: Missing authorization in TeamCity

> Attackers can bypass account-creation restrictions in JetBrains TeamCity by deducing request data from unauthenticated HTML and JavaScript responses.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Jun 2023
- **Updated:** 26 Nov 2024
- **Also known as:** GHSA-qjwq-qh5c-p96w

## What is CVE-2015-1313?

CVE-2015-1313 is a medium-severity missing authorization vulnerability in Jetbrains Teamcity, published on 29 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

JetBrains TeamCity 8 and 9 before 9.0.2 allows bypass of account-creation restrictions via a crafted request because the required request data can be deduced by reading HTML and JavaScript files that are returned to the web browser after an initial unauthenticated request.

Weakness: CWE-425 (Direct Request)

## Which versions are affected by CVE-2015-1313?

It affects 1 product.


Products: Jetbrains Teamcity.

## How do I fix CVE-2015-1313?

No fix has been published for CVE-2015-1313 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-1313 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2015-1313 exists.

## Other vulnerabilities in Jetbrains Teamcity

- [CVE-2026-63077](https://insights.sbomify.com/CVE-2026-63077/): JetBrains TeamCity Deserialization of Untrusted Data (critical 9.8, exploited in the wild)
- [CVE-2024-27198](https://insights.sbomify.com/CVE-2024-27198/): JetBrains TeamCity Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2023-42793](https://insights.sbomify.com/CVE-2023-42793/): JetBrains TeamCity Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2024-27199](https://insights.sbomify.com/CVE-2024-27199/): JetBrains TeamCity Relative Path Traversal (high 7.3, exploited in the wild)
- [CVE-2024-23917](https://insights.sbomify.com/CVE-2024-23917/): Auth bypass in TeamCity (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-1313 and fix it if it is affected.

What it is: CVE-2015-1313 is a medium-severity missing authorization vulnerability in Jetbrains Teamcity, published on 29 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2015-1313 exists.

Affected product: Jetbrains Teamcity. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2015-1313/ (Markdown: https://insights.sbomify.com/CVE-2015-1313/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-1313
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-1313
- OSV: https://osv.dev/vulnerability/CVE-2015-1313

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-1313/
Summaries are generated and may contain mistakes; the official description above is the record.