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.

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Fixes

Solution

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Workaround

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History

Tue, 25 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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

Type Values Removed Values Added
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.
Title Information Disclosure in extension "Modules" (modules)
Weaknesses CWE-639
References
Metrics cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: TYPO3

Published:

Updated: 2026-08-25T14:09:12.595Z

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

Link: CVE-2026-77127

cve-icon Vulnrichment

Updated: 2026-08-25T14:08:56.071Z

cve-icon NVD

Status : Received

Published: 2026-08-25T09:17:32.860

Modified: 2026-08-25T14:16:53.943

Link: CVE-2026-77127

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-25T10:30:05Z

Weaknesses