# CVE-2024-13925: Klarna Checkout for WooCommerce < 2.13.5 - DoS via Excessive Logging

> An unauthenticated attacker can flood log files via an Ajax endpoint, causing disk exhaustion and denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:** 17 Apr 2025
- **Updated:** 27 Aug 2025
- **Also known as:** GHSA-m6j5-92q7-225w

## What is CVE-2024-13925?

CVE-2024-13925 is a high-severity denial of service vulnerability in Unknown Klarna Checkout for WooCommerce, published on 17 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Klarna Checkout for WooCommerce WordPress plugin before 2.13.5 exposes an unauthenticated WooCommerce Ajax endpoint that allows an attacker to flood the log files with data at the maximum size allowed for a POST parameter per request. This can result in rapid consumption of disk space, potentially filling the entire disk.

## Which versions are affected by CVE-2024-13925?

It affects 1 product.


Products: Klarna Klarna Checkout for Woocommerce.

## How do I fix CVE-2024-13925?

No fix has been published for CVE-2024-13925 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-13925 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-13925 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-13925 and fix it if it is affected.

What it is: CVE-2024-13925 is a high-severity denial of service vulnerability in Unknown Klarna Checkout for WooCommerce, published on 17 Apr 2025. 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-2024-13925 exists.

Affected product: Unknown Klarna Checkout for WooCommerce. 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-2024-13925/ (Markdown: https://insights.sbomify.com/CVE-2024-13925/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-13925
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-13925
- OSV: https://osv.dev/vulnerability/CVE-2024-13925

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-13925/
Summaries are generated and may contain mistakes; the official description above is the record.