CVE-2018-12071
No known exploitation. EPSS puts it in the 74th percentile. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- Packagist codeigniter/frameworkAffected: < 3.1.10Upgrade to: 3.1.10Stated by: GitHub advisory
- CodeigniterAffected: < 3.1.9Upgrade to: 3.1.9Stated by: NVD
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
A Session Fixation issue exists in CodeIgniter before 3.1.9 because session.use_strict_mode in the Session Library was mishandled.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
1.5% chance of exploitation activity in the next 30 days, which ranks it in the 74th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
5 events over 2549 days, from the signal feeds we watch.
- Patch availablerecord updated
- Publishedweakness classified, att&ck mapped
Affected products
And 1 more affected product. See all after sign-in
Technical detail
CVSS 3.0 vector
Open in the CVSS calculatorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Scored 9.8 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Defense EvasionT1550Use Alternate Authentication Materialmedium confidence
- Initial AccessT1078Valid Accountsmedium confidence
Sources
References in the record
- codeigniter.com/user_guide/changelog.html
- github.com/bcit-ci/CodeIgniter/commit/800a20d6c4662d99ae0988b2f8f2238bb8bb29db
- nvd.nist.gov/vuln/detail/CVE-2018-12071
And 4 more references. See all after sign-in
Watch the software you run.
My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.
We'll flag the next CVE, public exploit or patch for Codeigniter, not every advisory.
A free account adds
- The full version matrix and every affected product
- Exploit links, proofs of concept and Metasploit modules
- Email alerts for the products you watch
- The same data over REST API, MCP and CLI