CVE-2021-40926: James heinrich/getid3 Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-x2gw-85w6-fjjw
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2021-40926 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting James heinrich/getid3 libraries in the Packagist ecosystem. The issue involves cross-site scripting in demos/demo.mysqli.php in getid3. Remediation is available by upgrading affected packages to version 1.9.21.

CVE-2021-40926 at a Glance

CVE Identifier CVE-2021-40926
GHSA Identifier GHSA-x2gw-85w6-fjjw
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 James heinrich/getid3
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:3.1/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-2021-40926

To remediate this vulnerability, upgrade all affected James heinrich/getid3 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

james-heinrich/getid3 fixed: 1.9.21 
Upgrade james-heinrich/getid3 to 1.9.21
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 james-heinrich/getid3

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-40926, inspect your project dependencies for James heinrich/getid3:

inspect dependencies for james-heinrich/getid3

Analyze the terminal output to locate any version of James heinrich/getid3 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.9.21), 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 James heinrich/getid3, 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

Cross-site scripting (XSS) vulnerability in demos/demo.mysqli.php in getID3 1.X and v2.0.0-beta allows remote attackers to inject arbitrary web script or HTML via the showtagfiles parameter.

CVE-2021-40926 Affected James heinrich/getid3 Versions

1 component(s)
Fixed Versions:
1.9.21
Product / Package Ecosystem Affected Versions Fixed Version
james-heinrich/getid3
 Packagist
≥ 1.0.0
< 1.9.21
1.9.21

References

NVD — CVE-2021-40926 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-40926
James heinrich/getid3 Source Repository REPOSITORY
https://github.com/JamesHeinrich/getID3/issues/341
James heinrich/getid3 Source Repository REPOSITORY
https://github.com/JamesHeinrich/getID3/pull/342
James heinrich/getid3 Source Repository REPOSITORY
https://github.com/JamesHeinrich/getID3
James heinrich/getid3 Release RELEASE
https://github.com/JamesHeinrich/getID3/releases/tag/v1.9.21

Frequently Asked Questions

What is CVE-2021-40926?
CVE-2021-40926 is a security vulnerability in James heinrich/getid3 involving Cross-site scripting in demos/demo.mysqli.php in getID3 under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which James heinrich/getid3 versions are affected?
Affected versions include releases prior to 1.9.21 across affected packages: james-heinrich/getid3.
What version fixes CVE-2021-40926?
Upgrading to 1.9.21 (or the latest patched release for your respective branch) resolves the vulnerability.
Is james-heinrich/getid3 affected?
Yes, james-heinrich/getid3 is affected in releases prior to 1.9.21. Upgrade your dependency to 1.9.21 or later.
What is the CVSS score of CVE-2021-40926?
CVE-2021-40926 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2021-40926?
CVE-2021-40926 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-2021-40926?
Run the dependency tree command: 'inspect dependencies for james-heinrich/getid3'. 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-x2gw-85w6-fjjw",
  "modified" : "2021-10-05T16:02:41Z",
  "published" : "2021-10-04T20:13:55Z",
  "aliases" : [ "CVE-2021-40926" ],
  "summary" : "Cross-site scripting in demos/demo.mysqli.php in getID3",
  "details" : "Cross-site scripting (XSS) vulnerability in demos/demo.mysqli.php in getID3 1.X and v2.0.0-beta allows remote attackers to inject arbitrary web script or HTML via the showtagfiles parameter.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "james-heinrich/getid3"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0.0"
      }, {
        "fixed" : "1.9.21"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-40926"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/JamesHeinrich/getID3/issues/341"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/JamesHeinrich/getID3/pull/342"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/JamesHeinrich/getID3"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/JamesHeinrich/getID3/releases/tag/v1.9.21"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-10-04T13:49:18Z",
    "nvd_published_at" : "2021-10-01T16:15:00Z"
  }
}