CVE-2026-77145 - Vulnerability Details - OpenCVE

The permission check for the frontend management update flow verified a different event than the one the request went on to modify. A user with frontend event management access could therefore modify events belonging to other organizers.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00207.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products

References

Link	Providers
https://typo3.org/security/advisory/typo3-ext-sa-2026-026

History

Tue, 25 Aug 2026 15:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 25 Aug 2026 09:15:00 +0000

Type	Values Removed	Values Added
Description		The permission check for the frontend management update flow verified a different event than the one the request went on to modify. A user with frontend event management access could therefore modify events belonging to other organizers.
Title		Broken Access Control in extension "Events 2" (events2)
Weaknesses		CWE-639
References		https://typo3.org/security/advisory/typo3-ext-sa-2026-026
Metrics		cvssV4_0 `{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: TYPO3

Published: 2026-08-25T09:00:32.558Z

Updated: 2026-08-25T14:02:34.907Z

Reserved: 2026-08-20T13:10:15.962Z

Link: CVE-2026-77145

Vulnrichment

Updated: 2026-08-25T14:02:30.515Z

NVD

Status : Received

Published: 2026-08-25T09:17:35.667

Modified: 2026-08-25T14:16:55.677

Link: CVE-2026-77145

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-25T11:45:03Z

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