# CVE-2023-22843: Stored Cross-Site Scripting (XSS) in Threat Intelligence rules in Guardian/CMC before 22.6.2

> An authenticated admin can inject malicious JavaScript into Threat Intelligence rules, allowing execution against other users viewing the rules.

- **Severity:** High 7.3 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Aug 2023
- **Updated:** 20 Sep 2024
- **Also known as:** GHSA-5cwq-4hm6-gp6g

## What is CVE-2023-22843?

CVE-2023-22843 is a high-severity cross-site scripting vulnerability in Nozomi Networks CMC, published on 9 Aug 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

An authenticated attacker with administrative access to the web management interface can inject malicious JavaScript code inside the definition of a Threat Intelligence rule, that will be stored and can later be executed by another legitimate user viewing the details of such a rule.
Via stored Cross-Site Scripting (XSS), an attacker may be able to perform unauthorized actions on behalf of legitimate users and/or gather sensitive information. JavaScript injection was possible in the contents for Yara rules, while limited HTML injection has been proven for packet and STYX rules.

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

## Which versions are affected by CVE-2023-22843?

It affects 2 products.


Products: Nozominetworks Cmc, Nozominetworks Guardian.

## How do I fix CVE-2023-22843?

No fix has been published for CVE-2023-22843 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-22843 being exploited?

There is no known exploitation of CVE-2023-22843 in the wild and no public exploit code.

## Other vulnerabilities in Nozomi Networks CMC

- [CVE-2023-29245](https://insights.sbomify.com/CVE-2023-29245/): SQL Injection on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0 (critical 9.2)
- [CVE-2026-31984](https://insights.sbomify.com/CVE-2026-31984/): DoS through oversized audit log entries in Guardian/CMC before 26.2.0 (high 8.7)
- [CVE-2023-2567](https://insights.sbomify.com/CVE-2023-2567/): Authenticated SQL Injection on Query functionality in Guardian/CMC before 22.6.3 and 23.1.0 (high 8.7)
- [CVE-2023-22378](https://insights.sbomify.com/CVE-2023-22378/): Authenticated Blind SQL Injection on sorting in Guardian/CMC before 22.6.2 (high 8.7)
- [CVE-2023-23574](https://insights.sbomify.com/CVE-2023-23574/): Authenticated Blind SQL Injection on alerts count in Guardian/CMC before 22.6.2 (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-22843 and fix it if it is affected.

What it is: CVE-2023-22843 is a high-severity cross-site scripting vulnerability in Nozomi Networks CMC, published on 9 Aug 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-22843 in the wild and no public exploit code.

Affected product: Nozomi Networks CMC. 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-2023-22843/ (Markdown: https://insights.sbomify.com/CVE-2023-22843/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-22843
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-22843
- OSV: https://osv.dev/vulnerability/CVE-2023-22843

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-22843/
Summaries are generated and may contain mistakes; the official description above is the record.