CVE-2018-6010: Yiisoft/yii2 Cross-Site Scripting Vulnerability

HIGH
Advisory Identifier: GHSA-8gfq-c54m-3rf6
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CVSS 7.5
CWE-79
Published
Advisory Summary

CVE-2018-6010 is a HIGH (CVSS 7.5) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Yiisoft/yii2 libraries in the Packagist ecosystem. The issue involves yii framework reflected cross-site scripting. Remediation is available by upgrading affected packages to version 2.0.14.

CVE-2018-6010 at a Glance

CVE Identifier CVE-2018-6010
GHSA Identifier GHSA-8gfq-c54m-3rf6
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Yiisoft/yii2
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:N/S:U/C:H/I:N/A:N).

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

How to Fix CVE-2018-6010

To remediate this vulnerability, upgrade all affected Yiisoft/yii2 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 fixed: 2.0.14 
Upgrade yiisoft/yii2 to 2.0.14
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

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-6010, inspect your project dependencies for Yiisoft/yii2:

inspect dependencies for yiisoft/yii2

Analyze the terminal output to locate any version of Yiisoft/yii2 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0.14), 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, 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

In Yii Framework 2.x before 2.0.14, remote attackers could obtain potentially sensitive information from exception messages, or exploit reflected XSS on the error handler page in non-debug mode. Related to base/ErrorHandler.php, log/Dispatcher.php, and views/errorHandler/exception.php.

CVE-2018-6010 Affected Yiisoft/yii2 Versions

1 component(s)
Fixed Versions:
2.0.14
Product / Package Ecosystem Affected Versions Fixed Version
yiisoft/yii2
 Packagist
≥ 2.0.0
< 2.0.14
2.0.14

References

NVD — CVE-2018-6010 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-6010
Yiisoft/yii2 Source Repository REPOSITORY
https://github.com/yiisoft/yii2/issues/14711
Yiisoft/yii2 Source Repository REPOSITORY
https://github.com/yiisoft/yii2/pull/15534
Security Fix Commit FIX COMMIT
https://github.com/yiisoft/yii2/commit/6b0be47e0fa9c532e03b07b4369050582fcf5c7a
Yiisoft/yii2 Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/yiisoft/yii2/CVE-2018-6010.yaml
Yiisoft/yii2 Source Repository REPOSITORY
https://github.com/yiisoft/yii2-framework
www.yiiframework.com/news/165/yii-2-0-14... WEB
https://www.yiiframework.com/news/165/yii-2-0-14-is-released

Frequently Asked Questions

What is CVE-2018-6010?
CVE-2018-6010 is a security vulnerability in Yiisoft/yii2 involving Yii Framework reflected Cross-site Scripting under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Yiisoft/yii2 versions are affected?
Affected versions include releases prior to 2.0.14 across affected packages: yiisoft/yii2.
What version fixes CVE-2018-6010?
Upgrading to 2.0.14 (or the latest patched release for your respective branch) resolves the vulnerability.
Is yiisoft/yii2 affected?
Yes, yiisoft/yii2 is affected in releases prior to 2.0.14. Upgrade your dependency to 2.0.14 or later.
What is the CVSS score of CVE-2018-6010?
CVE-2018-6010 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2018-6010?
CVE-2018-6010 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-2018-6010?
Run the dependency tree command: 'inspect dependencies for yiisoft/yii2'. 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-8gfq-c54m-3rf6",
  "modified" : "2024-04-24T18:31:31Z",
  "published" : "2022-05-13T01:20:23Z",
  "aliases" : [ "CVE-2018-6010" ],
  "summary" : "Yii Framework reflected Cross-site Scripting",
  "details" : "In Yii Framework 2.x before 2.0.14, remote attackers could obtain potentially sensitive information from exception messages, or exploit reflected XSS on the error handler page in non-debug mode. Related to base/ErrorHandler.php, log/Dispatcher.php, and views/errorHandler/exception.php.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "yiisoft/yii2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.0.14"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-6010"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/yiisoft/yii2/issues/14711"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/yiisoft/yii2/pull/15534"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/yiisoft/yii2/commit/6b0be47e0fa9c532e03b07b4369050582fcf5c7a"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/yiisoft/yii2/CVE-2018-6010.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/yiisoft/yii2-framework"
  }, {
    "type" : "WEB",
    "url" : "https://www.yiiframework.com/news/165/yii-2-0-14-is-released"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-24T18:31:31Z",
    "nvd_published_at" : "2018-01-22T22:29:00Z"
  }
}