CVE-2024-45509Network attack vector

Authenticated bookmark owner disclosure via missing authorization

Published Sep 1, 2024 · Updated Sep 3, 2024

Incorrect authorization in MISP 2.4.196 and earlier allows remote authenticated users to read bookmark owner data through shared bookmarks. The index and view actions in app/Controller/BookmarksController.php returned associated User records without a permission check; the patch adds mayViewUser and removes those records from unauthorized responses. A non-admin account must access an organization-shared bookmark, exposing the owner's user ID, email address, and organization ID without granting write access.

CVSS severity6.5
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Incorrect authorization in MISP 2.4.196 and earlier allows remote authenticated users to read bookmark owner data through shared bookmarks. The index and view actions in app/Controller/BookmarksController.php returned associated User records without a permission check; the patch adds mayViewUser and removes those records from unauthorized responses. A non-admin account must access an organization-shared bookmark, exposing the owner's user ID, email address, and organization ID without granting write access.

The record

CVE
CVE-2024-45509
Published
Sep 1, 2024
Updated
Sep 3, 2024
Vendor
MISP Project
Product
MISP
Classifications
CWE-863, CWE-284, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.4.196

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MISP Project · MISPversion=0 <=2.4.196

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-284Improper Access Control
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo