CVE-2026-77127

Medium

Description

The extension fails to restrict a backend AJAX endpoint for inline editing to fields the current user is permitted to see or edit. An authenticated, low-privileged backend user can supply arbitrary table, field and record parameters, and trigger an error response that discloses the current database value of the requested field, leading to disclosure of sensitive information such as backend and frontend user password hashes. Exploitation requires a valid, authenticated TYPO3 backend user account with access to the extensions backend module.

SeverityMedium
CVSS6.0
Exploit probability—
ProductExtension "Modules"
PublishedAug 25, 2026
First seenAug 25, 2026

How to fix

Update
  • TYPO3 Extension "Modules"8.1.4, 7.10.4 or later

Affected products

ProductAffected versionsFixed in
TYPO3 Extension "Modules"8.0.0 ≤ v < 8.1.4, v < 7.10.48.1.4, 7.10.4

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