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CVE-2015-3154

17
FAUCET Score

CVE-2015-3154 describes a CRLF injection vulnerability in Zend\Mail (Zend_Mail) components of Zend Framework versions before 1.12.12, 2.3.8, and 2.4.1. This flaw allows remote attackers to inject arbitrary HTTP headers and perform HTTP response splitting attacks by embedding CRLF sequences within email headers. Rated as Medium severity (CVSS 6.1), it requires user interaction and has a low impact on confidentiality and integrity, with no impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.12.12CPE matchmatch criteria
cpe:2.3:a:zend:zend_framework:*:*:*:*:*:*:*:*
>= 2.3.0, < 2.3.8CPE matchmatch criteria
cpe:2.3:a:zend:zend_framework:*:*:*:*:*:*:*:*
>= 2.4.0, < 2.4.1CPE matchmatch criteria
cpe:2.3:a:zend:zend_framework:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.01%
Probability of exploitation in next 30 days
EPSS Percentile
59.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0101 is in the 72nd percentile among its peer group of 26,221 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

composerpatch availablevia ghsa
Product: zendframework/zendframeworkFixed in: 2.3.8
composerpatch availablevia ghsa
Product: zendframework/zendframeworkFixed in: 2.4.1
composerpatch availablevia ghsa
Product: zendframework/zend-httpFixed in: 2.3.8
composerpatch availablevia ghsa
Product: zendframework/zend-httpFixed in: 2.4.1
composerpatch availablevia ghsa
Product: zendframework/zendframework1Fixed in: 1.12.12
composerpatch availablevia ghsa
Product: zendframework/zend-httpFixed in: 1.12.12

Vendor Advisories (1)

composerGHSA-5957-5crx-79jxmedium

Zenario CMS vulnerable to CRLF injection

May 24, 2022

References

framework.zend.com / security/advisory/ZF2015-04
ExploitVendor Advisory