SB2026082619 - Multiple vulnerabilities in femanager extension for TYPO3
Published: August 26, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 vulnerabilities.
1) Missing Authorization (CVE-ID: CVE-2026-77133)
CWE-ID: CWE-862 - Missing Authorization
CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to missing authorization. A remote attacker can gain elevated privileges in arbitrary frontend groups.
2) Incorrect authorization (CVE-ID: CVE-2026-77134)
CWE-ID: CWE-863 - Incorrect Authorization
CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to the affected extension fails to require the dedicated admin confirmation token when processing an admin-approval request. A remote attacker can gain access to the target system.
3) Authorization bypass through user-controlled key (CVE-ID: CVE-2026-77135)
CWE-ID: CWE-639 - Authorization Bypass Through User-Controlled Key
CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the user detail view fails to verify that a requested user record matches the configured or logged-in target. A remote user can supply an arbitrary user ID and retrieve another frontend user's profile data.
4) Missing Authorization (CVE-ID: CVE-2026-77146)
CWE-ID: CWE-862 - Missing Authorization
CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to the invitation controller fails to stop processing after redirecting on invalid input. A remote attacker can set a new password for and re-enable an arbitrary existing frontend user account.
Remediation
Install update from vendor's website.