CVE-2024-13925Public exploitNetwork attack vector

Disk exhaustion via unbounded AJAX log messages

Published Apr 17, 2025 · Updated Aug 27, 2025

Uncontrolled logging in Klarna Checkout for WooCommerce before 2.13.5 allows remote attackers to exhaust disk space through AJAX. The kco_wc_log_js endpoint accepts a checkout-page nonce and a POST message at the server request-size limit, then writes the message to WooCommerce logs without a length cap. A checkout page must expose log_to_file_nonce, after which repeated large requests can fill the filesystem and interrupt the store.

CVSS severity7.5
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled logging in Klarna Checkout for WooCommerce before 2.13.5 allows remote attackers to exhaust disk space through AJAX. The kco_wc_log_js endpoint accepts a checkout-page nonce and a POST message at the server request-size limit, then writes the message to WooCommerce logs without a length cap. A checkout page must expose log_to_file_nonce, after which repeated large requests can fill the filesystem and interrupt the store.

The record

CVE
CVE-2024-13925
Published
Apr 17, 2025
Updated
Aug 27, 2025
Vendor
Krokedil
Product
Klarna Checkout for WooCommerce
Classifications
CWE-779, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.13.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Krokedil · Klarna Checkout for WooCommerceversion=0 <2.13.5

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-779Logging of Excessive Data
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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