# CVE-2024-43369: Persistent Cross-site Scripting in Ibexa RichText Field Type

> Attackers with editing permissions can inject malicious scripts via links in rich text fields due to case-sensitive blocklisting, leading to persistent XSS.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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:** Yes
- **Published:** 15 Aug 2024
- **Updated:** 16 Aug 2024
- **Also known as:** CVE-2024-43372, GHSA-hvcf-6324-cjh7

## What is CVE-2024-43369?

CVE-2024-43369 is a high-severity cross-site scripting vulnerability in ibexa fieldtype-richtext, published on 15 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Ibexa RichText Field Type is a Field Type for supporting rich formatted text stored in a structured XML format. In versions on the 4.6 branch prior to 4.6.10, the validator for the RichText fieldtype blocklists `javascript:` and `vbscript:` in links to prevent XSS. This can leave other options open, and the check can be circumvented using upper case. Content editing permissions for RichText content is required to exploit this vulnerability, which typically means Editor role or higher. The fix implements an allowlist instead, which allows only approved link protocols. The new check is case insensitive. Version 4.6.10 contains a patch for this issue. No known workarounds are available.

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

## Which versions are affected by CVE-2024-43369?

2 open source packages ship an affected version, including ibexa/fieldtype-richtext.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `ibexa/fieldtype-richtext` | Packagist | From 4.6.0 | 4.6.10 |
| `ibexa/fieldtype-richtext` | Packagist | From 4.6.0 | 4.6.10 |

## How do I fix CVE-2024-43369?

Upgrade ibexa/fieldtype-richtext to 4.6.10 or later.

## Is CVE-2024-43369 being exploited?

There is no known exploitation of CVE-2024-43369 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-43369 and fix it if it is affected.

What it is: CVE-2024-43369 is a high-severity cross-site scripting vulnerability in ibexa fieldtype-richtext, published on 15 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-43369 in the wild and no public exploit code.

Affected packages and fixed versions:
- ibexa/fieldtype-richtext (Packagist): affected from 4.6.0; fixed in 4.6.10
- ibexa/fieldtype-richtext (Packagist): affected from 4.6.0; fixed in 4.6.10

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-2024-43369/ (Markdown: https://insights.sbomify.com/CVE-2024-43369/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-43369
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-43369
- OSV: https://osv.dev/vulnerability/CVE-2024-43369

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-43369/
Summaries are generated and may contain mistakes; the official description above is the record.