CVE-2026-77128

Medium

Description

The extension fails to enforce enable-field restrictions on a repository query parameter. An unauthenticated remote user can pass a demand-override parameter to view hidden or time-restricted events, unless the disableOverrideDemand plugin setting is active. Exploitation of this issue requires only that disableOverrideDemand is not enabled.

SeverityMedium

CVSS6.3

Exploit probability—

Product

Extension "Event management and registration"

PublishedAug 25, 2026

First seenAug 25, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

TYPO3 Extension "Event management and registration"9.0.3, 8.6.2, 7.9.3, 6.7.2, 5.9.3 or later

Vendor advisories

typo3.org/security/advisory/typo3-ext-sa-2026-023

Affected products

Product	Affected versions	Fixed in
TYPO3 Extension "Event management and registration"	9.0.0 ≤ v < 9.0.3, 8.0.0 ≤ v < 8.6.2, 7.0.0 ≤ v < 7.9.3, 6.0.0 ≤ v < 6.7.2, v < 5.9.3	9.0.3, 8.6.2, 7.9.3, 6.7.2, 5.9.3

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