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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

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.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
TYPO3 Extension "Event management and registration" unaffected
Version Status Constraints
9.0.0 affected < 9.0.3
8.0.0 affected < 8.6.2
7.0.0 affected < 7.9.3
6.0.0 affected < 6.7.2
0 affected < 5.9.3

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://typo3.org/security/advisory/typo3-ext-sa-2026-023 cve-icon cve-icon
History

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

Type Values Removed Values Added
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.
Title Broken Access Control in extension "Event management and registration" (sf_event_mgt)
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: TYPO3

Published:

Updated: 2026-08-25T09:00:44.929Z

Reserved: 2026-08-20T13:10:12.062Z

Link: CVE-2026-77128

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-25T09:17:33.033

Modified: 2026-08-25T09:17:33.033

Link: CVE-2026-77128

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses