CVE-2014-8686
CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by leveraging...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2014-8686- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-310
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2014-8686- Updated
- 2026-11-02
EUVDEUVD-2014-8518 No score
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.
- Record
EUVD-2014-8518- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xrhp-vgm2-2xvr
CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by leveraging...
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.
- Record
GHSA-xrhp-vgm2-2xvr- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Seagate Business NAS - Remote Command Execution (Metasploit) | 2015-03-04 |
| Metasploit | Seagate Business NAS Unauthenticated Remote Command Execution | 2015-03-01 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Metasploit, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2014-8686 is a critical vulnerability (CVSS 9.8) in Codeigniter, published September 19, 2017. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 37.2%, the 98th percentile. No source names a fixed version.
References
beyondbinary.io/articles/seagate-nas-rce
packetstormsecurity.com/files/130609/Seagate-Business-NAS-Unauthenticated-Remote-Command-Execution.html
dionach.com/blog/codeigniter-session-decoding-vulnerability
codeigniter.com/userguide2/changelog.html
nvd.nist.gov/vuln/detail/CVE-2014-8686
github.com/advisories/GHSA-xrhp-vgm2-2xvr