CVE-2026-91847Network attack vector

Conversation disclosure and message injection via unchecked ownership

Published Sep 19, 2026 · Updated Sep 19, 2026

IDOR in Ladela Interactive Bookly before 28.2 allows remote attackers to read and inject messages in other visitors' AI conversations. Unauthenticated conversation actions accept a caller-supplied conversation identifier without verifying ownership of the referenced conversation. Any visitor who can name another conversation can expose its assistant messages and alter the ongoing exchange.

CVSS severity4.8
Medium
EPSS probability0.22%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in Ladela Interactive Bookly before 28.2 allows remote attackers to read and inject messages in other visitors' AI conversations. Unauthenticated conversation actions accept a caller-supplied conversation identifier without verifying ownership of the referenced conversation. Any visitor who can name another conversation can expose its assistant messages and alter the ongoing exchange.

The record

CVE
CVE-2026-91847
Published
Sep 19, 2026
Updated
Sep 19, 2026
Vendor
Ladela Interactive
Product
Bookly
Classifications
CWE-639, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 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=28.1 <28.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ladela Interactive · Booklyversion=28.1 <28.2

Published CVSS scores

4.8CISA-ADPCVSS:3.1/AV:N/AC:H/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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 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.

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Technologies

Your stack

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Your stack

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