CVE-2023-37871Network attack vector

Guest-order cancellation via exposed cancel-order URL

Published Dec 20, 2023 · Updated Apr 28, 2026

An IDOR in GoCardless for WooCommerce 2.5.6 and earlier allows remote attackers to disclose guest-order data or cancel guest orders. The order-received path exposes a cancel-order URL before validating that a user-controlled order key authorizes access to the referenced order. No account is required; successful access compromises guest-order confidentiality and can change an order's state to canceled.

CVSS severity8.2
High
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An IDOR in GoCardless for WooCommerce 2.5.6 and earlier allows remote attackers to disclose guest-order data or cancel guest orders. The order-received path exposes a cancel-order URL before validating that a user-controlled order key authorizes access to the referenced order. No account is required; successful access compromises guest-order confidentiality and can change an order's state to canceled.

The record

CVE
CVE-2023-37871
Published
Dec 20, 2023
Updated
Apr 28, 2026
Vendor
WooCommerce
Product
GoCardless for WooCommerce
Classifications
CWE-639, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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 <=2.5.6 changes=[{"at":"2.5.7","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WooCommerce · GoCardless for WooCommerceversion=n/a <=2.5.6 changes=[{"at":"2.5.7","status":"unaffected"}]

Published CVSS scores

8.2PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1565.001Stored Data Manipulation

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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