CVE-2018-12071
CVE-2018-12071 is a critical-severity vulnerability in Codeigniter with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-384.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 1% (66th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-384
- Affected product: Codeigniter
- Published:
- Last modified:
Description
A Session Fixation issue exists in CodeIgniter before 3.1.9 because session.use_strict_mode in the Session Library was mishandled.
Frequently asked questions
- What is CVE-2018-12071?
- A Session Fixation issue exists in CodeIgniter before 3.1.9 because session.use_strict_mode in the Session Library was mishandled.
- How severe is CVE-2018-12071?
- CVE-2018-12071 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-12071 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-12071?
- CVE-2018-12071 affects Codeigniter. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-12071?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2018-12071 published?
- CVE-2018-12071 was published on 2018-06-17 and last updated on 2026-06-17.
References
- https://github.com/bcit-ci/CodeIgniter/commit/800a20d6c4662d99ae0988b2f8f2238bb8bb29db
- https://www.codeigniter.com/user_guide/changelog.html
Affected products (1)
- cpe:2.3:a:codeigniter:codeigniter:*:*:*:*:*:*:*:*
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