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Fencer Intel
critical 9.8

CVE-2014-8684 in the critical feed json

CodeIgniter and Kohana vulnerable to PHP Object Injection

published 2017-09-19 9 y ago modified 2026-06-17 4 mo ago also GHSA-w9ph-q4h9-rwq6 , EUVD-2022-5542

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
72.2%
EPSS 72.2% chance of exploitation in 30 days, percentile 99.4%
public exploits
2
Metasploit, Exploit-DB

Summary

CodeIgniter before 3.0 and Kohana 3.2.3 and earlier and 3.3.x through 3.3.2 make it easier for remote attackers to spoof session cookies and consequently conduct PHP object injection attacks by leveraging use of standard string comparison operators to compare cryptographic hashes.

Patch / fix

  • packagist codeigniter/framework 3.0.0
  • packagist kohana/core 3.3.3

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-8684 updated cvss 8.1

php-Kohana: Timing attack and PHP object injection

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (Metasploit exploit/linux/http/seagate_nas_php_exec_noauth)
  2. Published

Exploit prediction

72.16% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
packagist codeigniter/framework
<3.0.0
3.0.0
packagist kohana/core
<3.3.3
3.3.3

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.