CVE-2022-40916Public exploitNetwork attack vector

Authenticated-session hijacking via persistent attacker-chosen identifier

Published Feb 6, 2025 · Updated Feb 7, 2025

Session fixation in Tiny File Manager 2.4.7 and earlier allows remote attackers to hijack authenticated sessions via a chosen session ID. The application accepts a client-selected 26-character session identifier and leaves that identifier valid after logout. Exploitation requires a known identifier bound to an authenticated session, after which the session exposes that account's file-management privileges.

CVSS severity9.8
Critical
EPSS probability0.82%
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 Tiny File Manager 2.4.7 and earlier allows remote attackers to hijack authenticated sessions via a chosen session ID. The application accepts a client-selected 26-character session identifier and leaves that identifier valid after logout. Exploitation requires a known identifier bound to an authenticated session, after which the session exposes that account's file-management privileges.

The record

CVE
CVE-2022-40916
Published
Feb 6, 2025
Updated
Feb 7, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-384, T1550.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 7, 2025Record 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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-384Session Fixation
T1550.004Use Alternate Authentication Material: Web Session Cookie

Public exploit references

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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