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Zend Framework CVE-2015-1786

HIGH
Cross-Site Request Forgery (CSRF) (CWE-352)
2017-06-08 secalert@redhat.com
CSRF Zend Framework Zend
8.8
CVSS 3.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
CWE-352
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Anti-CSRF tokens, SameSite cookies
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. EPSS exploitation probability: 0.11%.
Exploit ScenarioDerived

A remote attacker could trick authenticated users into performing unintended actions by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAI

Cross-site request forgery (CSRF) vulnerability in Zend/Validator/Csrf in Zend Framework 2.3.x before 2.3.6 via null or malformed token identifiers. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.

Affected Packages

composer zendframework/zendframework fix: 2.3.6

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in composer

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Technical ContextAI · show details

This vulnerability is classified as Cross-Site Request Forgery (CSRF) (CWE-352), which allows attackers to trick authenticated users into performing unintended actions. Cross-site request forgery (CSRF) vulnerability in Zend/Validator/Csrf in Zend Framework 2.3.x before 2.3.6 via null or malformed token identifiers. Affected products include: Zend Zend Framework. Version information: before 2.3.6.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 8.8 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

Cross-site request forgery (CSRF) vulnerability in Zend/Validator/Csrf in Zend Framework 2.3.x before 2.3.6 via null or malformed token identifiers.

Threat Intelligence Overview

EPSS Score
0.1%
Top 71% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Request Forgery MEDIUM

Cross-Site Request Forgery exploits the automatic credential inclusion behavior of web browsers.

Affected Products (CPE)CVE.org

cpe:2.3:a:zend:zend_framework:2.3.0:*:*:*:*:*:*:*
cpe:2.3:a:zend:zend_framework:2.3.1:*:*:*:*:*:*:*
cpe:2.3:a:zend:zend_framework:2.3.2:*:*:*:*:*:*:*
cpe:2.3:a:zend:zend_framework:2.3.3:*:*:*:*:*:*:*
cpe:2.3:a:zend:zend_framework:2.3.4:*:*:*:*:*:*:*
cpe:2.3:a:zend:zend_framework:2.3.5:*:*:*:*:*:*:*

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References

Advisories & patches
ADVISORY https://framework.zend.com/changelog/2.3.6 REF https://bugzilla.redhat.com/show_bug.cgi?id=1207781

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