CVE-2015-3154

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-01-27 · updated 2026-06-17
Weakness: CWE-74

Description

CRLF injection vulnerability in Zend\Mail (Zend_Mail) in Zend Framework before 1.12.12, 2.x before 2.3.8, and 2.4.x before 2.4.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via CRLF sequences in the header of an email.

Affected products

Zend Technologies Zend Framework: before 1.12.12; from 2.3.0 before 2.3.8; from 2.4.0 before 2.4.1 — fixed in 1.12.12, 2.3.8, 2.4.1

How to fix

Upgrade to a fixed version: Zend Technologies Zend Framework 1.12.12, 2.3.8, 2.4.1. Check the vendor advisory for mitigations.

References

http://framework.zend.com/security/advisory/ZF2015-04
http://framework.zend.com/security/advisory/ZF2015-04

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