CVE-2026-103299 (GCVE-0-2026-103299)
Vulnerability from cvelistv5 – Published: 2026-10-26 06:00 – Updated: 2026-10-26 06:00
VLAI
EPSS
VEX
Title
nexi Alpha Bank for WooCommerce <= 2.2.0 - Unauthenticated Payment Confirmation Forgery via Empty Shared Secret
Summary
The Payment Gateway WordPress plugin through 2.2.0 does not ensure a shared secret is configured before using it to authenticate the bank's payment-notification callback, allowing unauthenticated attackers to forge a valid notification and mark any WooCommerce order as paid on installs where the secret has not been set, and the same callback lets them move any pending order to a failed state whether or not the secret is configured.
Severity
No CVSS data available.
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/0a1c3070-181d-49… | exploitvdb-entrytechnical-description |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Unknown | Payment Gateway |
Affected:
0 , ≤ 2.2.0
(semver)
|
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Payment Gateway",
"vendor": "Unknown",
"versions": [
{
"lessThanOrEqual": "2.2.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Naoki Kawahigashi"
},
{
"lang": "en",
"type": "coordinator",
"value": "WPScan"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Payment Gateway WordPress plugin through 2.2.0 does not ensure a shared secret is configured before using it to authenticate the bank\u0027s payment-notification callback, allowing unauthenticated attackers to forge a valid notification and mark any WooCommerce order as paid on installs where the secret has not been set, and the same callback lets them move any pending order to a failed state whether or not the secret is configured."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-287 Improper Authentication",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-26T06:00:18.758Z",
"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"shortName": "WPScan"
},
"references": [
{
"tags": [
"exploit",
"vdb-entry",
"technical-description"
],
"url": "https://wpscan.com/vulnerability/0a1c3070-181d-49ea-9488-d0d7e4be419c/"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "nexi Alpha Bank for WooCommerce \u003c= 2.2.0 - Unauthenticated Payment Confirmation Forgery via Empty Shared Secret",
"x_generator": {
"engine": "WPScan CVE Generator"
}
}
},
"cveMetadata": {
"assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"assignerShortName": "WPScan",
"cveId": "CVE-2026-103299",
"datePublished": "2026-10-26T06:00:18.758Z",
"dateReserved": "2026-09-30T11:26:11.706Z",
"dateUpdated": "2026-10-26T06:00:18.758Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-103299",
"date": "2026-10-26",
"epss": "0.00137",
"percentile": "0.03059"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "Payment Gateway",
"vendor": "Unknown",
"versions": [
{
"lessThanOrEqual": "2.2.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "contact@wpscan.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Payment Gateway WordPress plugin through 2.2.0 does not ensure a shared secret is configured before using it to authenticate the bank\u0027s payment-notification callback, allowing unauthenticated attackers to forge a valid notification and mark any WooCommerce order as paid on installs where the secret has not been set, and the same callback lets them move any pending order to a failed state whether or not the secret is configured."
}
],
"id": "CVE-2026-103299",
"lastModified": "2026-10-26T13:52:56.910",
"metrics": {},
"published": "2026-10-26T07:17:06.870",
"references": [
{
"source": "contact@wpscan.com",
"url": "https://wpscan.com/vulnerability/0a1c3070-181d-49ea-9488-d0d7e4be419c/"
}
],
"sourceIdentifier": "contact@wpscan.com",
"vulnStatus": "Deferred"
}
}
}
}
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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