CVE-2026-77146: CWE-862 Missing Authorization in TYPO3 Extension "femanager"
CVE-2026-77146 is a high-severity vulnerability in the TYPO3 extension "femanager" version 8.x. The invitation controller does not properly stop processing after redirecting on invalid input, such as missing or invalid hashes or disabled users. This flaw allows an unauthenticated attacker to reset passwords and re-enable arbitrary existing frontend user accounts.
AI Analysis
Technical Summary
The TYPO3 extension "femanager" version 8.0.0 up to but not including 8.4.2 contains a missing authorization vulnerability (CWE-862) in its invitation controller. When invalid input is encountered (missing hash, non-existent, disabled, or deleted users), the controller fails to halt processing after redirecting, enabling an unauthenticated attacker to set new passwords and reactivate arbitrary frontend user accounts. This vulnerability has a CVSS 4.0 score of 8.3, indicating high severity. No patch or official remediation level has been provided by the vendor at this time.
Potential Impact
An unauthenticated attacker can exploit this vulnerability to reset passwords and re-enable arbitrary frontend user accounts in TYPO3 installations using the affected femanager extension versions. This could lead to unauthorized access to user accounts, potentially compromising user data and application integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the affected extension or disable the invitation controller functionality if possible to prevent exploitation.
CVE-2026-77146: CWE-862 Missing Authorization in TYPO3 Extension "femanager"
Description
CVE-2026-77146 is a high-severity vulnerability in the TYPO3 extension "femanager" version 8.x. The invitation controller does not properly stop processing after redirecting on invalid input, such as missing or invalid hashes or disabled users. This flaw allows an unauthenticated attacker to reset passwords and re-enable arbitrary existing frontend user accounts.
CVSS v4.0
Score 8.3high
Affected software
pkg:composer/in2code/femanagerRun 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 "femanager" version 8.0.0 up to but not including 8.4.2 contains a missing authorization vulnerability (CWE-862) in its invitation controller. When invalid input is encountered (missing hash, non-existent, disabled, or deleted users), the controller fails to halt processing after redirecting, enabling an unauthenticated attacker to set new passwords and reactivate arbitrary frontend user accounts. This vulnerability has a CVSS 4.0 score of 8.3, indicating high severity. No patch or official remediation level has been provided by the vendor at this time.
Potential Impact
An unauthenticated attacker can exploit this vulnerability to reset passwords and re-enable arbitrary frontend user accounts in TYPO3 installations using the affected femanager extension versions. This could lead to unauthorized access to user accounts, potentially compromising user data and application integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the affected extension or disable the invitation controller functionality if possible to prevent exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TYPO3
- Date Reserved
- 2026-08-20T13:10:15.962Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8d5b66acd9273b49f365d7
Added to database: 08/25/2026, 09:07:50 UTC
Last enriched: 08/25/2026, 09:22:05 UTC
Last updated: 08/25/2026, 09:22:05 UTC
Views: 5
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