CVE-2015-3397

Yii Framework Cross-site Scripting Vulnerability

4.3 MediumFix available

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.

Exploit likelihood

2.38%Up 1.2 points since Feb 4, 2022

What each source reports

NVD Score used 4.3

Record: CVE-2015-3397
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2015-3397
Updated: 2026-11-02

EUVDEUVD-2022-5469 No score

Record: EUVD-2022-5469
Updated: 2026-11-03

GitHub AdvisoriesGHSA-w2xx-jp9f-gp8g No score

Yii Framework Cross-site Scripting Vulnerability

Record: GHSA-w2xx-jp9f-gp8g
Weakness: CWE-79
Updated: 2026-11-02

OSVGHSA-w2xx-jp9f-gp8g No score

Yii Framework Cross-site Scripting Vulnerability

Record: GHSA-w2xx-jp9f-gp8g
Weakness: CWE-79
Updated: 2026-11-02

Affected products

yiiframework

Affected packages

Affected packages
Package	Affected	Fixed
`yiisoft/yii2` Packagist	before 2.0.4	2.0.4
`yiisoft/yii2` Packagist	before 2.0.4, plus listed versions 2.0.02.0.0-alpha2.0.0-beta2.0.0-rc2.0.12.0.22.0.3	2.0.4

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-3397 is a medium vulnerability (CVSS 4.3) in Yiiframework, published May 14, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.38%, the 83rd percentile. Fixed in yiisoft/yii2 2.0.4.