CVE-2026-48888Network attack vector

Unauthenticated store interruption via unthrottled withdrawal requests

Published Sep 8, 2026 · Updated Sep 8, 2026

Resource exhaustion in Automattic WooCommerce before 11.1.0 allows remote attackers to interrupt stores through HTTP requests. The order-withdrawal form processor accepted repeated confirmation submissions without rate limits, repeatedly matching orders and sending withdrawal emails. The withdrawal feature must be enabled, but no account or user interaction is required; sustained submissions can exhaust server resources and interrupt the store.

CVSS severity7.5
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Automattic WooCommerce before 11.1.0 allows remote attackers to interrupt stores through HTTP requests. The order-withdrawal form processor accepted repeated confirmation submissions without rate limits, repeatedly matching orders and sending withdrawal emails. The withdrawal feature must be enabled, but no account or user interaction is required; sustained submissions can exhaust server resources and interrupt the store.

The record

CVE
CVE-2026-48888
Published
Sep 8, 2026
Updated
Sep 8, 2026
Vendor
WooCommerce
Product
WooCommerce
Classifications
CWE-770, CAPEC-469, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 2026Record 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=n/a <11.1.0 changes=[{"at":"11.1.0","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WooCommerce · WooCommerceversion=n/a <11.1.0 changes=[{"at":"11.1.0","status":"unaffected"}]

Published CVSS scores

7.5Patchstack CNACVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CAPEC-469HTTP DoS
T1499.003Application Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

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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