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CVE-2016-10131

25
FAUCET Score

CVE-2016-10131 is a critical arbitrary code execution vulnerability affecting CodeIgniter versions prior to 3.1.3, specifically within the system/libraries/Email.php component. Attackers can exploit this by manipulating the email->from field to inject malicious sendmail command-line arguments. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed on CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.1.2CPE matchmatch criteria
cpe:2.3:a:codeigniter:codeigniter:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.09%
Probability of exploitation in next 30 days
EPSS Percentile
86.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0309 is in the 78th percentile among its peer group of 36,833 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: bcit-ci/codeigniterFixed in: 3.1.3
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-2pcj-76hj-xqhmcritical

CodeIgniter arbitrary code execution

May 17, 2022

References

gist.github.com / Zenexer/40d02da5e07f151adeaeeaa11af9ab36
Third Party Advisory
github.com / bcit-ci/CodeIgniter/issues/4963
Patch
github.com / bcit-ci/CodeIgniter/pull/4966
Patch
securityfocus.com / bid/96851