# CVE-2022-41343: Dompdf allows remote file inclusion because URI validation failure does not halt font registration

> Remote attackers can exploit a URI validation failure in Dompdf to include arbitrary files, potentially leading to code execution or data disclosure.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:** 25 Sep 2022
- **Updated:** 22 May 2025
- **Also known as:** GHSA-6x28-7h8c-chx4

## What is CVE-2022-41343?

CVE-2022-41343 is a high-severity path traversal vulnerability in n/a, published on 25 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

registerFont in FontMetrics.php in Dompdf before 2.0.1 allows remote file inclusion because a URI validation failure does not halt font registration, as demonstrated by a @font-face rule.

Weakness: CWE-552 (Files or Directories Accessible to External Parties)

## Which versions are affected by CVE-2022-41343?

2 open source packages ship an affected version, including dompdf/dompdf. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `dompdf/dompdf` | Packagist | All versions | 2.0.1 |
| `dompdf/dompdf` | Packagist | All versions | 2.0.1 |

Products: Dompdf Project Dompdf.

## How do I fix CVE-2022-41343?

Upgrade dompdf/dompdf to 2.0.1 or later.

## Is CVE-2022-41343 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-41343 exists.

Public exploit code:

- 🐍 Python Exploit for CVE-2022-23935 (github_poc): https://github.com/BKreisel/CVE-2022-41343

## Other vulnerabilities in n/a

- [CVE-2023-24813](https://insights.sbomify.com/CVE-2023-24813/): URI validation failure on SVG parsing. Bypass of CVE-2023-23924 (critical 10.0)
- [CVE-2023-23924](https://insights.sbomify.com/CVE-2023-23924/): URI validation failure on SVG parsing in Dompdf (critical 10.0)
- [CVE-2021-3838](https://insights.sbomify.com/CVE-2021-3838/): PHAR Deserialization in dompdf/dompdf (critical 9.8)
- [CVE-2021-3902](https://insights.sbomify.com/CVE-2021-3902/): Improper Restriction of XML External Entity Reference in dompdf/dompdf (critical 9.8)
- [CVE-2022-28368](https://insights.sbomify.com/CVE-2022-28368/): Remote code injection in dompdf/dompdf (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-41343 and fix it if it is affected.

What it is: CVE-2022-41343 is a high-severity path traversal vulnerability in n/a, published on 25 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-41343 exists.

Affected packages and fixed versions:
- dompdf/dompdf (Packagist): affected all versions; fixed in 2.0.1
- dompdf/dompdf (Packagist): affected all versions; fixed in 2.0.1

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-2022-41343/ (Markdown: https://insights.sbomify.com/CVE-2022-41343/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-41343
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-41343
- OSV: https://osv.dev/vulnerability/CVE-2022-41343

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-41343/
Summaries are generated and may contain mistakes; the official description above is the record.