# CVE-2023-25827: Cross-site Scripting in OpenTSDB

> Attackers can inject malicious JavaScript into OpenTSDB error messages, executing code in victim browsers via the legacy HTTP query API.

- **Severity:** High 8.2 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 3 May 2023
- **Updated:** 12 Feb 2025
- **Also known as:** GHSA-9chv-3w6c-jq9w

## What is CVE-2023-25827?

CVE-2023-25827 is a high-severity cross-site scripting vulnerability in OpenTSDB, published on 3 May 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Due to insufficient validation of parameters reflected in error messages by the legacy HTTP query API and the logging endpoint, it is possible to inject and execute malicious JavaScript within the browser of a targeted OpenTSDB user. This issue shares the same root cause as CVE-2018-13003, a reflected XSS vulnerability with the suggestion endpoint.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2023-25827?

2 open source packages ship an affected version, including net.opentsdb:opentsdb. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `net.opentsdb:opentsdb` | Maven | All versions to 2.4.1 | None |
| `net.opentsdb:opentsdb` | Maven | All versions to 2.4.1 | None |

Products: Opentsdb Opentsdb.

## How do I fix CVE-2023-25827?

No fix has been published for CVE-2023-25827 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-25827 being exploited?

There is no known exploitation of CVE-2023-25827 in the wild and no public exploit code.

## Other vulnerabilities in OpenTSDB

- [CVE-2023-36812](https://insights.sbomify.com/CVE-2023-36812/): Remote Code Execution in OpenTSDB (critical 9.8)
- [CVE-2023-25826](https://insights.sbomify.com/CVE-2023-25826/): Remote Code Execution in OpenTSDB (critical 9.8)
- [CVE-2020-35476](https://insights.sbomify.com/CVE-2020-35476/): OS Command Injection in OpenTSDB (critical 9.8)
- [CVE-2018-12972](https://insights.sbomify.com/CVE-2018-12972/): OpenTSDB vulnerable to OS Command Injection (critical 9.8)
- [CVE-2018-12973](https://insights.sbomify.com/CVE-2018-12973/): OpenTSDB Cross-site Scripting vulnerability (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-25827 and fix it if it is affected.

What it is: CVE-2023-25827 is a high-severity cross-site scripting vulnerability in OpenTSDB, published on 3 May 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-25827 in the wild and no public exploit code.

Affected packages and fixed versions:
- net.opentsdb:opentsdb (Maven): affected all versions up to 2.4.1; no fix listed
- net.opentsdb:opentsdb (Maven): affected all versions up to 2.4.1; no fix listed

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-2023-25827/ (Markdown: https://insights.sbomify.com/CVE-2023-25827/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-25827
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-25827
- OSV: https://osv.dev/vulnerability/CVE-2023-25827

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-25827/
Summaries are generated and may contain mistakes; the official description above is the record.