CVE-2026-65486Network attack vector

Unauthenticated private-event disclosure via unchecked export status

Published Jul 23, 2026 · Updated Jul 23, 2026

Broken access control in Bastien Ho Event Post 6.1.0 and earlier allows remote attackers to read nonpublic event data through exports. The calendar-export path creates iCal, Outlook, or Google Calendar output without checking whether the requested event has a public status. No account is required, and the bounded consequence is exposure of event information returned by the export path.

CVSS severity5.3
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Broken access control in Bastien Ho Event Post 6.1.0 and earlier allows remote attackers to read nonpublic event data through exports. The calendar-export path creates iCal, Outlook, or Google Calendar output without checking whether the requested event has a public status. No account is required, and the bounded consequence is exposure of event information returned by the export path.

The record

CVE
CVE-2026-65486
Published
Jul 23, 2026
Updated
Jul 23, 2026
Vendor
N.O.U.S. Open Useful and Simple
Product
Event Post
Classifications
CWE-862, T1213
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 23, 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 <=6.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

N.O.U.S. Open Useful and Simple · Event Postversion=n/a <=6.0.1

Published CVSS scores

5.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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.

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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-862Missing Authorization
T1213Data from Information Repositories

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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