# CVE-2026-13001: Podlove Podcast Publisher <= 4.5.1 - Unauthenticated Arbitrary File Upload via podlove_image_cache_url Parameter

> Unauthenticated attackers can upload arbitrary files via the image cache parameter, potentially leading to remote code execution on WordPress sites.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Jul 2026
- **Updated:** 14 Jul 2026
- **Also known as:** GHSA-7gcx-p8g5-3g9x

## What is CVE-2026-13001?

CVE-2026-13001 is a critical vulnerability in eteubert Podlove Podcast Publisher, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Podlove Podcast Publisher plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'podlove_handle_cache_files' function in all versions up to, and including, 4.5.1. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2026-13001?


## How do I fix CVE-2026-13001?

No fix has been published for CVE-2026-13001 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-13001 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13001 exists.

Public exploit code:

- Podlove Podcast Publisher Unauthenticated File Upload RCE via is_image() vs extract_file_extension() Mismatch | CVSS 9.8 (github_poc): https://github.com/shinthink/CVE-2026-13001
- https://github.com/ghostpels/CVE-2026-13001 (github_poc): https://github.com/ghostpels/CVE-2026-13001
- Podlove Podcast Publisher <= 4.5.1 - Arbitrary File Upload (nuclei): http/cves/2026/CVE-2026-13001.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-13001 and fix it if it is affected.

What it is: CVE-2026-13001 is a critical vulnerability in eteubert Podlove Podcast Publisher, published on 14 Jul 2026. 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-2026-13001 exists.

Affected product: eteubert Podlove Podcast Publisher. 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-2026-13001/ (Markdown: https://insights.sbomify.com/CVE-2026-13001/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-13001
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-13001
- OSV: https://osv.dev/vulnerability/CVE-2026-13001

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-13001/
Summaries are generated and may contain mistakes; the official description above is the record.