CVE-2017-11516: Yiisoft/yii2 dev Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-4c64-w8fg-xcq2
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2017-11516 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Yiisoft/yii2 dev libraries in the Packagist ecosystem. The issue involves yii cross-site scripting framework vulnerability. Remediation is available by upgrading affected packages to version 2.0.13.

CVE-2017-11516 at a Glance

CVE Identifier CVE-2017-11516
GHSA Identifier GHSA-4c64-w8fg-xcq2
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Yiisoft/yii2 dev
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2017-11516

To remediate this vulnerability, upgrade all affected Yiisoft/yii2 dev dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

yiisoft/yii2-dev fixed: 2.0.13 
Upgrade yiisoft/yii2-dev to 2.0.13
yiisoft/yii2 fixed: 2.0.13 
Upgrade yiisoft/yii2 to 2.0.13
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for yiisoft/yii2-dev

How to Check if You Are Affected

To determine whether your application is affected by CVE-2017-11516, inspect your project dependencies for Yiisoft/yii2 dev:

inspect dependencies for yiisoft/yii2-dev

Analyze the terminal output to locate any version of Yiisoft/yii2 dev in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0.13), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Yiisoft/yii2 dev, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An XSS vulnerability exists in framework/views/errorHandler/exception.php in Yii Framework 2.0.12 affecting the exception screen when debug mode is enabled, because $exception->errorInfo is mishandled.

CVE-2017-11516 Affected Yiisoft/yii2 dev Versions

2 component(s)
Fixed Versions:
2.0.13
Product / Package Ecosystem Affected Versions Fixed Version
yiisoft/yii2-dev
 Packagist
≥ 2.0.12
< 2.0.13
All 1 versions
2.0.12
2.0.13
yiisoft/yii2
 Packagist
≥ 2.0.12
< 2.0.13
All 1 versions
2.0.12
2.0.13

References

NVD — CVE-2017-11516 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-11516
Yiisoft/yii2 dev Source Repository REPOSITORY
https://github.com/yiisoft/yii2/pull/14492
Yiisoft/yii2 dev Source Repository REPOSITORY
https://github.com/yiisoft/yii2/pull/14492/files/feb4067de8a58f391a66e395192b0d83a8109b95
Yiisoft/yii2 dev Source Repository REPOSITORY
https://github.com/yiisoft/yii2-framework

Frequently Asked Questions

What is CVE-2017-11516?
CVE-2017-11516 is a security vulnerability in Yiisoft/yii2 dev involving Yii Cross-site Scripting Framework vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Yiisoft/yii2 dev versions are affected?
Affected versions include releases prior to 2.0.13 across affected packages: yiisoft/yii2-dev, yiisoft/yii2.
What version fixes CVE-2017-11516?
Upgrading to 2.0.13 (or the latest patched release for your respective branch) resolves the vulnerability.
Is yiisoft/yii2-dev affected?
Yes, yiisoft/yii2-dev is affected in releases prior to 2.0.13. Upgrade your dependency to 2.0.13 or later.
Is yiisoft/yii2 affected?
Yes, yiisoft/yii2 is affected in releases prior to 2.0.13. Upgrade your dependency to 2.0.13 or later.
What is the CVSS score of CVE-2017-11516?
CVE-2017-11516 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2017-11516?
CVE-2017-11516 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Packagist dependencies for CVE-2017-11516?
Run the dependency tree command: 'inspect dependencies for yiisoft/yii2-dev'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4c64-w8fg-xcq2",
  "modified" : "2024-04-24T18:32:51Z",
  "published" : "2022-05-17T02:26:08Z",
  "aliases" : [ "CVE-2017-11516" ],
  "summary" : "Yii Cross-site Scripting Framework vulnerability",
  "details" : "An XSS vulnerability exists in framework/views/errorHandler/exception.php in Yii Framework 2.0.12 affecting the exception screen when debug mode is enabled, because $exception->errorInfo is mishandled.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "yiisoft/yii2-dev"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.12"
      }, {
        "fixed" : "2.0.13"
      } ]
    } ],
    "versions" : [ "2.0.12" ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "yiisoft/yii2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.12"
      }, {
        "fixed" : "2.0.13"
      } ]
    } ],
    "versions" : [ "2.0.12" ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-11516"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/yiisoft/yii2/pull/14492"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/yiisoft/yii2/pull/14492/files/feb4067de8a58f391a66e395192b0d83a8109b95"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/yiisoft/yii2-framework"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-24T18:32:51Z",
    "nvd_published_at" : "2017-07-21T19:29:00Z"
  }
}