TYPO3 Event management and registration Extension up to 9.0.2 Enable Field Restrictions demand-override privileges management

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.95+

Summaryinfo

A vulnerability, which was classified as problematic, was found in TYPO3 Event management and registration Extension up to 5.9.2/6.7.1/7.9.2/8.6.1/9.0.2. The impacted element is an unknown function of the component Enable Field Restrictions. Executing a manipulation of the argument demand-override can lead to privileges management. The identification of this vulnerability is CVE-2026-77128. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in TYPO3 Event management and registration Extension up to 5.9.2/6.7.1/7.9.2/8.6.1/9.0.2. This vulnerability affects some unknown functionality of the component Enable Field Restrictions. The manipulation of the argument demand-override with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality. CVE summarizes:

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.

The advisory is shared for download at typo3.org. This vulnerability was named CVE-2026-77128 since 08/20/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 5.9.3, 6.7.2, 7.9.3, 8.6.2 or 9.0.3 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Event management and registration Extension 5.9.3/6.7.2/7.9.3/8.6.2/9.0.3

Timelineinfo

08/20/2026 CVE reserved
08/25/2026 +5 days Advisory disclosed
08/25/2026 +0 days VulDB entry created
08/25/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: typo3.org
Status: Confirmed

CVE: CVE-2026-77128 (🔒)
GCVE (CVE): GCVE-0-2026-77128
GCVE (VulDB): GCVE-100-394984

Entryinfo

Created: 08/25/2026 11:26
Changes: 08/25/2026 11:26 (68)
Complete: 🔍
Cache ID: 216::103

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