# CVE-2023-7323: Nagios Log Server < 2024R1 XSS via Create User Function

> Attackers can inject arbitrary scripts via the Create User function, potentially executing code in victims' browsers or taking over accounts.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 30 Oct 2025
- **Updated:** 17 Nov 2025
- **Also known as:** GHSA-g2hj-qcr3-8fx6

## What is CVE-2023-7323?

CVE-2023-7323 is a medium-severity cross-site scripting vulnerability in Nagios Log Server, published on 30 Oct 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Nagios Log Server versions prior to 2024R1 are vulnerable to cross-site scripting (XSS) via the Create User function. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

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

## Which versions are affected by CVE-2023-7323?

It affects 1 product.


Products: Nagios Log Server.

## How do I fix CVE-2023-7323?

No fix has been published for CVE-2023-7323 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-7323 being exploited?

There is no known exploitation of CVE-2023-7323 in the wild and no public exploit code.

## Other vulnerabilities in Nagios Log Server

- [CVE-2025-44823](https://insights.sbomify.com/CVE-2025-44823/): Information disclosure in Log Server (critical 9.9)
- [CVE-2025-34277](https://insights.sbomify.com/CVE-2025-34277/): Nagios Log Server < 2024R1.3.1 RCE via Malformed Dashboard ID (critical 9.4)
- [CVE-2025-34274](https://insights.sbomify.com/CVE-2025-34274/): Nagios Log Server < 2024R2.0.3 Logstash Process Root Privileges (critical 9.3)
- [CVE-2023-7322](https://insights.sbomify.com/CVE-2023-7322/): Nagios Log Server < 2024R1 Incorrect Authorization Granting Full API Access (high 8.7)
- [CVE-2025-34271](https://insights.sbomify.com/CVE-2025-34271/): Nagios Log Server < 2024R2.0.2 Cluster Manager Credential Requests Sent Over Plaintext (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-7323 and fix it if it is affected.

What it is: CVE-2023-7323 is a medium-severity cross-site scripting vulnerability in Nagios Log Server, published on 30 Oct 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-7323 in the wild and no public exploit code.

Affected product: Nagios Log Server. 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-2023-7323/ (Markdown: https://insights.sbomify.com/CVE-2023-7323/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-7323
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-7323
- OSV: https://osv.dev/vulnerability/CVE-2023-7323

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-7323/
Summaries are generated and may contain mistakes; the official description above is the record.