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Yiiframework CVE-2015-3397

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2015-05-14 cve@mitre.org
4.3
CVSS 2.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

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

Impact

CVSS score of 4.3 (MEDIUM). Attack characteristics: network attack vector, M complexity. EPSS exploitation probability: 0.33%.

Exploit ScenarioDerived

A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.3% exploitation probability (EPSS)

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AnalysisAI

Cross-site scripting (XSS) vulnerability in Yii Framework before 2.0.4 allows remote attackers to inject arbitrary web script or HTML via vectors related to JSON, arrays, and Internet Explorer 6 or 7. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Affected Packages

composer yiisoft/yii2 fix: 2.0.4

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.

Technical ContextAI · show details

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Cross-site scripting (XSS) vulnerability in Yii Framework before 2.0.4 allows remote attackers to inject arbitrary web script or HTML via vectors related to JSON, arrays, and Internet Explorer 6 or 7. Affected products include: Yiiframework. Version information: before 2.0.4.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
M
Confidentiality
None
Integrity
P
Availability
None

DescriptionCVE.org

Cross-site scripting (XSS) vulnerability in Yii Framework before 2.0.4 allows remote attackers to inject arbitrary web script or HTML via vectors related to JSON, arrays, and Internet Explorer 6 or 7.

Threat Intelligence Overview

EPSS Score
0.3%
Top 44% exploitable
Data Quality
4 sources
Confidence: Medium

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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)CVE.org

cpe:2.3:a:yiiframework:yiiframework:*:*:*:*:*:*:*:*
CVE-2024-58136 CRITICAL POC
9.0 Apr 10

Yii Framework 2 before 2.0.52 contains a behavior attachment regression that allows attackers to exploit the __class arr

CVE-2020-15148 CRITICAL POC
10.0 Sep 15

Yii 2 (yiisoft/yii2) before version 2.0.38 is vulnerable to remote code execution if the application calls `unserialize(

CVE-2023-50708 CRITICAL POC
9.8 Dec 22

yii2-authclient is an extension that adds OpenID, OAuth, OAuth2 and OpenId Connect consumers for the Yii framework 2.0.

CVE-2023-26750 CRITICAL POC
9.8 Apr 04

SQL injection vulnerability found in Yii Framework Yii 2 Framework before v.2.0.47 allows the a remote attacker to execu

CVE-2024-4990 CRITICAL POC
9.1 Mar 20

In yiisoft/yii2 version 2.0.48, the base Component class contains a vulnerability where the `__set()` magic method does

CVE-2023-50714 HIGH POC
8.8 Dec 22

yii2-authclient is an extension that adds OpenID, OAuth, OAuth2 and OpenId Connect consumers for the Yii framework 2.0.

CVE-2021-3689 HIGH POC
7.5 Aug 10

yii2 is vulnerable to Use of Predictable Algorithm in Random Number Generator. Rated high severity (CVSS 7.5), this vuln

CVE-2023-47130 CRITICAL
9.8 Nov 14

Yii is an open source PHP web framework. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable,

CVE-2022-41922 CRITICAL
9.8 Nov 23

`yiisoft/yii` before version 1.1.27 are vulnerable to Remote Code Execution (RCE) if the application calls `unserialize(

CVE-2018-8073 CRITICAL
9.8 Mar 21

Yii 2.x before 2.0.15 allows remote attackers to execute arbitrary LUA code via a variant of the CVE-2018-7269 attack in

CVE-2018-7269 CRITICAL
9.8 Mar 21

The findByCondition function in framework/db/ActiveRecord.php in Yii 2.x before 2.0.15 allows remote attackers to conduc

CVE-2022-34297 MEDIUM POC
5.4 Dec 09

Yii Yii2 Gii through 2.2.4 allows stored XSS by injecting a payload into any field. Rated medium severity (CVSS 5.4), th

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