CVE-2014-10400Network attack vector

Session hijacking via sequential session identifiers

Published Feb 6, 2020 · Updated Aug 6, 2024

Session hijacking in CGILua 5.0.x allows remote attackers to access arbitrary user sessions by guessing sequential session IDs. The session.lua library issues non-random eight-digit identifiers in sequence, making active session values rapidly predictable by brute force. No prior authentication is required, but a victim must hold an active session; successful guessing permits access within that session's privileges.

CVSS severity6.1
Medium
EPSS probability1.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session hijacking in CGILua 5.0.x allows remote attackers to access arbitrary user sessions by guessing sequential session IDs. The session.lua library issues non-random eight-digit identifiers in sequence, making active session values rapidly predictable by brute force. No prior authentication is required, but a victim must hold an active session; successful guessing permits access within that session's privileges.

The record

CVE
CVE-2014-10400
Published
Feb 6, 2020
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-384, CAPEC-59, T1550.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record 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

4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A: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-384Session Fixation
CAPEC-59Session Credential Falsification through Prediction
T1550.004Web Session Cookie

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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