CVE-2026-91847 (GCVE-0-2026-91847)
Vulnerability from cvelistv5 – Published: 2026-09-19 06:00 – Updated: 2026-09-19 06:00
VLAI
EPSS
VEX
Title
Bookly < 28.2 - Unauthenticated AI Assistant Conversation Disclosure and Message Injection via IDOR
Summary
The Online Scheduling and Appointment Booking System WordPress plugin before 28.2 does not verify that the requester owns the AI booking-assistant conversation named in its unauthenticated conversation actions, allowing any unauthenticated visitor to read another visitor's assistant messages and to inject messages into their in-progress conversation.
Severity
No CVSS data available.
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/9eef3086-3a67-4e… | exploitvdb-entrytechnical-description |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Unknown | Online Scheduling and Appointment Booking System |
Affected:
28.1 , < 28.2
(semver)
|
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Online Scheduling and Appointment Booking System",
"vendor": "Unknown",
"versions": [
{
"lessThan": "28.2",
"status": "affected",
"version": "28.1",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "vuxvinh"
},
{
"lang": "en",
"type": "coordinator",
"value": "WPScan"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Online Scheduling and Appointment Booking System WordPress plugin before 28.2 does not verify that the requester owns the AI booking-assistant conversation named in its unauthenticated conversation actions, allowing any unauthenticated visitor to read another visitor\u0027s assistant messages and to inject messages into their in-progress conversation."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-639 Authorization Bypass Through User-Controlled Key",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-19T06:00:17.100Z",
"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"shortName": "WPScan"
},
"references": [
{
"tags": [
"exploit",
"vdb-entry",
"technical-description"
],
"url": "https://wpscan.com/vulnerability/9eef3086-3a67-4ee2-bd78-e346e7b05d62/"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Bookly \u003c 28.2 - Unauthenticated AI Assistant Conversation Disclosure and Message Injection via IDOR",
"x_generator": {
"engine": "WPScan CVE Generator"
}
}
},
"cveMetadata": {
"assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"assignerShortName": "WPScan",
"cveId": "CVE-2026-91847",
"datePublished": "2026-09-19T06:00:17.100Z",
"dateReserved": "2026-09-15T08:36:37.677Z",
"dateUpdated": "2026-09-19T06:00:17.100Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Online Scheduling and Appointment Booking System",
"vendor": "Unknown",
"versions": [
{
"lessThan": "28.2",
"status": "affected",
"version": "28.1",
"versionType": "semver"
}
]
}
],
"source": "contact@wpscan.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Online Scheduling and Appointment Booking System WordPress plugin before 28.2 does not verify that the requester owns the AI booking-assistant conversation named in its unauthenticated conversation actions, allowing any unauthenticated visitor to read another visitor\u0027s assistant messages and to inject messages into their in-progress conversation."
}
],
"id": "CVE-2026-91847",
"lastModified": "2026-09-19T07:16:33.480",
"metrics": {},
"published": "2026-09-19T07:16:33.480",
"references": [
{
"source": "contact@wpscan.com",
"url": "https://wpscan.com/vulnerability/9eef3086-3a67-4ee2-bd78-e346e7b05d62/"
}
],
"sourceIdentifier": "contact@wpscan.com",
"vulnStatus": "Received"
}
}
}
}
Loading…
Loading…
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.
Loading…
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…