# CVE-2023-1347: Customizer Export/Import < 0.9.6 - Admin+ PHP Object Injection

> Admins can trigger PHP object injection via unserialized settings, potentially leading to code execution if suitable gadgets exist.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 May 2023
- **Updated:** 4 Feb 2025
- **Also known as:** GHSA-w7hh-rr9c-v4j6

## What is CVE-2023-1347?

CVE-2023-1347 is a high-severity unsafe deserialization vulnerability in Unknown Customizer Export/Import, published on 8 May 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The Customizer Export/Import WordPress plugin before 0.9.6 unserializes user input provided via the settings, which could allow high privilege users such as admin to perform PHP Object Injection when a suitable gadget is present

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2023-1347?

It affects 1 product.


Products: Fastlinemedia Customizer Export\/Import.

## How do I fix CVE-2023-1347?

No fix has been published for CVE-2023-1347 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-1347 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1347 exists.

## Other vulnerabilities in Unknown Customizer Export/Import

- [CVE-2022-3380](https://insights.sbomify.com/CVE-2022-3380/): Customizer Export/Import < 0.9.5 - Admin+ PHP Objection Injection (high 7.2)
- [CVE-2024-7620](https://insights.sbomify.com/CVE-2024-7620/): Customizer Export/Import <= 0.9.7 - Authenticated (Admin+) Arbitrary File Upload via Customization Settings Import (medium 6.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-1347 and fix it if it is affected.

What it is: CVE-2023-1347 is a high-severity unsafe deserialization vulnerability in Unknown Customizer Export/Import, published on 8 May 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1347 exists.

Affected product: Unknown Customizer Export/Import. 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-2023-1347/ (Markdown: https://insights.sbomify.com/CVE-2023-1347/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-1347
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-1347
- OSV: https://osv.dev/vulnerability/CVE-2023-1347

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-1347/
Summaries are generated and may contain mistakes; the official description above is the record.