CVE-2014-8686: n/a vulnerability

CVE-2014-8686: CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by leveraging fallback to...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 13:26 UTC (UTC+00:00)

Security readout for executives and security teams

This issue affects older CodeIgniter applications that fall back to a weak custom XOR session-cookie encryption scheme when PHP Mcrypt is unavailable. That can make session cookies easier to decode, increasing risk around session confidentiality and trust decisions. The source bundle does not provide CVSS scoring or evidence of active exploitation. Exposure is most likely in legacy PHP applications using CodeIgniter before 2.2.0, especially where Mcrypt was absent and cookie-based sessions were enabled. The bundle’s affected product metadata is incomplete, so asset confirmation is required. Treat this as a legacy-platform risk requiring targeted inventory and remediation, not an internet-wide emergency based on the provided evidence. Prioritize externally reachable or authentication-sensitive applications first. Mitigation focus: Inventory applications using CodeIgniter before 2.2.0.; Upgrade affected CodeIgniter installations to 2.2.0 or a supported later version.; Check vendor guidance for session encryption and legacy framework migration..

Prepared: Jun 12, 2026, 20:56 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2014-8686 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 19, 2017, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://beyondbinary.io/articles/seagate-nas-rce/CVE reference · x_refsource_MISC
https://www.dionach.com/blog/codeigniter-session-decoding-vulnerabilityCVE reference · x_refsource_MISC
https://codeigniter.com/userguide2/changelog.htmlCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.