Description
The extension validates the HMAC of a frontend employee edit link only in the action that renders the edit form, not in the action that persists the change. An unauthenticated visitor who knows the UID of a visible employee record can send a direct POST request to the update action and overwrite that record without a valid edit link or any ownership check.
Published: 2026-08-25
Score: 8.7 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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History

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

Type Values Removed Values Added
Description The extension validates the HMAC of a frontend employee edit link only in the action that renders the edit form, not in the action that persists the change. An unauthenticated visitor who knows the UID of a visible employee record can send a direct POST request to the update action and overwrite that record without a valid edit link or any ownership check.
Title Broken Access Control in extension "Telephone Directory" (telephonedirectory)
Weaknesses CWE-639
CWE-862
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: TYPO3

Published:

Updated: 2026-08-25T09:00:36.477Z

Reserved: 2026-08-20T13:10:15.962Z

Link: CVE-2026-77140

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-25T09:17:34.807

Modified: 2026-08-25T09:17:34.807

Link: CVE-2026-77140

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-639

    Authorization Bypass Through User-Controlled Key

  • CWE-862

    Missing Authorization