# CVE-2024-29894: Cacti Cross-site Scripting vulnerability when using JavaScript based messaging API

> An attacker can inject JavaScript via unescaped variables in the messaging API to impersonate users and modify settings in Cacti.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L`)
- **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:** Yes
- **Published:** 13 May 2024
- **Updated:** 13 Feb 2025
- **Also known as:** CLEANSTART-2024-QW88175, DEBIAN-CVE-2024-29894, UBUNTU-CVE-2024-29894

## What is CVE-2024-29894?

CVE-2024-29894 is a medium-severity cross-site scripting vulnerability in Cacti Cacti, published on 13 May 2024. 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

Cacti provides an operational monitoring and fault management framework. Versions of Cacti prior to 1.2.27 contain a residual cross-site scripting vulnerability caused by an incomplete fix for CVE-2023-50250. `raise_message_javascript` from `lib/functions.php` now uses purify.js to fix CVE-2023-50250 (among others). However, it still generates the code out of unescaped PHP variables `$title` and `$header`. If those variables contain single quotes, they can be used to inject JavaScript code. An attacker exploiting this vulnerability could execute actions on behalf of other users. This ability to impersonate users could lead to unauthorized changes to settings. Version 1.2.27 fixes this issue.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-116 (Improper Encoding or Escaping of Output)

## Which versions are affected by CVE-2024-29894?

It affects 2 products.


Products: Cacti Cacti, Fedoraproject Fedora.

## How do I fix CVE-2024-29894?

Upgrade to a fixed version.

## Is CVE-2024-29894 being exploited?

There is no known exploitation of CVE-2024-29894 in the wild and no public exploit code.

## Other vulnerabilities in Cacti Cacti

- [CVE-2022-46169](https://insights.sbomify.com/CVE-2022-46169/): Cacti Command Injection (critical 9.8, exploited in the wild)
- [CVE-2026-39893](https://insights.sbomify.com/CVE-2026-39893/): Cacti: Pre-authentication SQL injection via rfilter RLIKE clause in graph_view.php (critical 9.8)
- [CVE-2026-39938](https://insights.sbomify.com/CVE-2026-39938/): Cacti: Unauthenticated RCE on Graph Image (critical 9.8)
- [CVE-2026-39955](https://insights.sbomify.com/CVE-2026-39955/): Cacti has Pre-Authentication SQL Injection via unanchored FILTER_VALIDATE_REGEXP in graph_view.php (critical 9.8)
- [CVE-2023-39361](https://insights.sbomify.com/CVE-2023-39361/): Unauthenticated SQL Injection in graph_view.php in Cacti (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-29894 and fix it if it is affected.

What it is: CVE-2024-29894 is a medium-severity cross-site scripting vulnerability in Cacti Cacti, published on 13 May 2024. 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-2024-29894 in the wild and no public exploit code.

Affected product: Cacti Cacti. 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-2024-29894/ (Markdown: https://insights.sbomify.com/CVE-2024-29894/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-29894
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-29894
- OSV: https://osv.dev/vulnerability/CVE-2024-29894

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-29894/
Summaries are generated and may contain mistakes; the official description above is the record.