CVE-2026-77146Network attack vector

Unauthenticated account takeover via incomplete redirect handling

Published Aug 25, 2026 · Updated Aug 25, 2026

Missing authorization in TYPO3 femanager 8.0.0 through 8.4.1 allows remote attackers to take over existing frontend user accounts. The invitation controller redirects when a hash or user is invalid but continues processing, resets the targeted user's password, and re-enables the account. An unauthenticated network request can reach the flow, but exploitation requires an existing account to target.

CVSS severity8.3
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in TYPO3 femanager 8.0.0 through 8.4.1 allows remote attackers to take over existing frontend user accounts. The invitation controller redirects when a hash or user is invalid but continues processing, resets the targeted user's password, and re-enables the account. An unauthenticated network request can reach the flow, but exploitation requires an existing account to target.

The record

CVE
CVE-2026-77146
Published
Aug 25, 2026
Updated
Aug 25, 2026
Vendor
in2code GmbH
Product
femanager
Classifications
CWE-862, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.0.0 <8.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

in2code GmbH · femanagerversion=8.0.0 <8.4.2

Published CVSS scores

8.3TYPO3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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