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Fencer Intel
critical 9.8

CVE-2014-8686 in the critical feed json

CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by leveraging fallback to a custom XOR-based encryption sc…

published 2017-09-19 9 y ago modified 2026-06-17 4 mo ago also EUVD-2014-8518

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
37.2%
EPSS 37.2% chance of exploitation in 30 days, percentile 98%
public exploits
2
Metasploit, Exploit-DB

Summary

CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by leveraging fallback to a custom XOR-based encryption scheme when the Mcrypt extension for PHP is not available.

Timeline

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

Exploit prediction

37.22% chance of exploitation in the next 30 days, higher than 98% 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 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

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.