How severe is CVE-2016-10131?

CVE-2016-10131 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-2016-10131 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-10131?

CVE-2016-10131 affects Codeigniter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-10131?

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-2016-10131 published?

CVE-2016-10131 was published on 2017-01-12 and last updated on 2026-06-17.

CVE-2016-10131

CVE-2016-10131 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-74.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Codeigniter
Published: 2017-01-12
Last modified: 2026-06-17

Description

system/libraries/Email.php in CodeIgniter before 3.1.3 allows remote attackers to execute arbitrary code by leveraging control over the email->from field to insert sendmail command-line arguments.

Frequently asked questions

What is CVE-2016-10131?: system/libraries/Email.php in CodeIgniter before 3.1.3 allows remote attackers to execute arbitrary code by leveraging control over the email->from field to insert sendmail command-line arguments.
How severe is CVE-2016-10131?: CVE-2016-10131 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-2016-10131 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-10131?: CVE-2016-10131 affects Codeigniter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-10131?: 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-2016-10131 published?: CVE-2016-10131 was published on 2017-01-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:codeigniter:codeigniter:*:*:*:*:*:*:*:*

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