CVE-2026-77144

High

Description

The frontend management plugin attributed a newly created event to the submitting user's organizer record only when the request supplied no organizer of its own. The accompanying permission check confirmed only that the submitting user held any organizer role. A user with frontend event management access could therefore create an event that is attributed to another organizer.

SeverityHigh

CVSS7.1

Exploit probability—

Product

Extension "Events 2"

PublishedAug 25, 2026

First seenAug 25, 2026

Weakness typeCWE-915CWE-915

How to fix

Update

TYPO3 Extension "Events 2"10.2.12, 9.4.2, 8.6.3 or later

Vendor advisories

typo3.org/security/advisory/typo3-ext-sa-2026-026

Affected products

Product	Affected versions	Fixed in
TYPO3 Extension "Events 2"	10.0.0 ≤ v < 10.2.12, 9.0.0 ≤ v < 9.4.2, v < 8.6.3	10.2.12, 9.4.2, 8.6.3

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