CVE-2026-77141: CWE-862 Missing Authorization in TYPO3 Extension "Club Directory"
Description
CVE-2026-77141 is a high-severity vulnerability in the TYPO3 extension "Club Directory" that allows unauthenticated users to modify or publish club records without ownership verification. The extension fails to perform ownership checks on user-supplied record identifiers in frontend edit, update, and activate actions. This enables attackers who know a club record's UID to overwrite or publish records they do not own.
CVSS v4.0
Score 8.8high
Affected software
TYPO3
Extension "Club Directory"
pkg:composer/jweiland/clubdirectoryRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The TYPO3 extension "Club Directory" contains a missing authorization vulnerability (CWE-862) where the frontend edit, update, and activate actions resolve club records based on user-supplied request arguments but do not verify ownership. As a result, unauthenticated attackers can send direct requests with a known club record UID to update or activate that record without permission. This flaw affects versions prior to 8.1.3, including 8.0.0 and 7.0.0. The vulnerability has a CVSS 4.0 base score of 8.8, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on integrity.
Potential Impact
An unauthenticated attacker can overwrite or publish club records without owning them, potentially leading to unauthorized data modification and premature publication of records awaiting approval. This compromises data integrity and trustworthiness of the club directory data.
Mitigation Recommendations
No official fix or patch is currently available for this vulnerability. Users of the TYPO3 "Club Directory" extension should monitor the vendor's advisory channels for updates. Until a fix is released, restrict access to the affected extension's frontend actions or implement custom authorization checks to prevent unauthorized record modification.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TYPO3
- Date Reserved
- 2026-08-20T13:10:15.962Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8d5b66acd9273b49f365cd
Added to database: 08/25/2026, 09:07:50 UTC
Last enriched: 09/10/2026, 06:37:19 UTC
Last updated: 10/10/2026, 18:48:22 UTC
Views: 46
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