CVE-2026-86407 (GCVE-0-2026-86407)
Vulnerability from cvelistv5 – Published: 2026-09-13 06:00 – Updated: 2026-09-13 06:00
VLAI
EPSS
VEX
Title
User Registration & Membership < 5.2.8 - Unauthenticated User Data Disclosure via Membership Thank You Page
Summary
The User Registration & Membership WordPress plugin before 5.2.8 does not verify that the visitor requesting its membership confirmation page owns the account named in the request, nor that any registration or purchase has taken place, allowing unauthenticated users to retrieve another user's email address, profile fields, role and membership order details. Exploitation requires the site owner to have added a user smart tag to that page's configurable message, which the shipped default does not contain.
Severity
No CVSS data available.
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/2c9eb1fe-4e18-4f… | exploitvdb-entrytechnical-description |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Unknown | User Registration & Membership |
Affected:
5.0 , < 5.2.8
(semver)
|
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "User Registration \u0026 Membership",
"vendor": "Unknown",
"versions": [
{
"lessThan": "5.2.8",
"status": "affected",
"version": "5.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Karthik Ramakrishnan"
},
{
"lang": "en",
"type": "coordinator",
"value": "WPScan"
}
],
"descriptions": [
{
"lang": "en",
"value": "The User Registration \u0026 Membership WordPress plugin before 5.2.8 does not verify that the visitor requesting its membership confirmation page owns the account named in the request, nor that any registration or purchase has taken place, allowing unauthenticated users to retrieve another user\u0027s email address, profile fields, role and membership order details. Exploitation requires the site owner to have added a user smart tag to that page\u0027s configurable message, which the shipped default does not contain."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-200 Information Exposure",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-13T06:00:08.517Z",
"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"shortName": "WPScan"
},
"references": [
{
"tags": [
"exploit",
"vdb-entry",
"technical-description"
],
"url": "https://wpscan.com/vulnerability/2c9eb1fe-4e18-4fd0-9581-5672ffc4b598/"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "User Registration \u0026 Membership \u003c 5.2.8 - Unauthenticated User Data Disclosure via Membership Thank You Page",
"x_generator": {
"engine": "WPScan CVE Generator"
}
}
},
"cveMetadata": {
"assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"assignerShortName": "WPScan",
"cveId": "CVE-2026-86407",
"datePublished": "2026-09-13T06:00:08.517Z",
"dateReserved": "2026-09-07T12:04:26.879Z",
"dateUpdated": "2026-09-13T06:00:08.517Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-86407\",\"sourceIdentifier\":\"contact@wpscan.com\",\"published\":\"2026-09-13T06:16:25.260\",\"lastModified\":\"2026-09-13T06:16:25.260\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The User Registration \u0026 Membership WordPress plugin before 5.2.8 does not verify that the visitor requesting its membership confirmation page owns the account named in the request, nor that any registration or purchase has taken place, allowing unauthenticated users to retrieve another user\u0027s email address, profile fields, role and membership order details. Exploitation requires the site owner to have added a user smart tag to that page\u0027s configurable message, which the shipped default does not contain.\"}],\"affected\":[{\"source\":\"contact@wpscan.com\",\"affectedData\":[{\"vendor\":\"Unknown\",\"product\":\"User Registration \u0026 Membership\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"5.0\",\"lessThan\":\"5.2.8\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://wpscan.com/vulnerability/2c9eb1fe-4e18-4fd0-9581-5672ffc4b598/\",\"source\":\"contact@wpscan.com\"}]}}"
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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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.
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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