CVE-2022-36179Network attack vector

Session hijacking via unrenewed post-login identifier

Published Nov 22, 2022 · Updated Jul 9, 2026

Session fixation in FusionDirectory 1.3 allows remote attackers to hijack authenticated sessions through a preset session identifier. The successful-login path in html/index.php redirects without calling session_regenerate_id(), leaving the pre-login identifier valid after authentication. Exploitation requires a victim to authenticate with an identifier already known to the attacker, exposing the victim's FusionDirectory privileges and data.

CVSS severity9.8
Critical
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session fixation in FusionDirectory 1.3 allows remote attackers to hijack authenticated sessions through a preset session identifier. The successful-login path in html/index.php redirects without calling session_regenerate_id(), leaving the pre-login identifier valid after authentication. Exploitation requires a victim to authenticate with an identifier already known to the attacker, exposing the victim's FusionDirectory privileges and data.

The record

CVE
CVE-2022-36179
Published
Nov 22, 2022
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-613, T1550.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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-613Insufficient Session Expiration
T1550.004Use Alternate Authentication Material: Web Session Cookie

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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