CVE-2023-38758: Wger Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-8m9p-3926-gffr
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CVSS 5.4
CWE-79
Published
Advisory Summary

CVE-2023-38758 is a MODERATE (CVSS 5.4) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Wger libraries in the PyPI ecosystem. The issue involves wger workout manager cross-site scripting vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2023-38758 at a Glance

CVE Identifier CVE-2023-38758
GHSA Identifier GHSA-8m9p-3926-gffr
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Wger
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 5.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2023-38758

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

wger fixed: Latest secure release 
pip install wger>=Latest secure release
Verify Direct and Transitive Dependencies

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

pip show wger

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2023-38758, inspect your installed packages using pip:

pip show wger

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

Note: The pip show wger command checks currently installed packages in your active Python environment.

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 Wger, 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 vulnerability in wger Project wger Workout Manager v.2.2.0a3 allows a remote attacker to gain privileges via the `license_author `field in the add-ingredient function in the `templates/ingredients/view.html`, `models/ingredients.py`, and `views/ingredients.py` components.

CVE-2023-38758 Affected Wger Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
wger
pypi/wger
PyPI
≤ 2.2.0a3

References

NVD — CVE-2023-38758 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-38758
Wger Source Repository REPOSITORY
https://github.com/0x72303074/CVE-Disclosures
Wger Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/wger/PYSEC-2023-143.yaml
Wger Source Repository REPOSITORY
https://github.com/wger-project/wger
Wger Security Information SECURITY
https://wger.de

Frequently Asked Questions

What is CVE-2023-38758?
CVE-2023-38758 is a security vulnerability in Wger involving wger Workout Manager Cross-site Scripting vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Wger versions are affected?
Affected versions include releases prior to current release patches across affected packages: wger.
What version fixes CVE-2023-38758?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is wger affected?
Yes, wger is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2023-38758?
CVE-2023-38758 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2023-38758?
CVE-2023-38758 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 PyPI dependencies for CVE-2023-38758?
Run the dependency tree command: 'pip show wger'. 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-8m9p-3926-gffr",
  "modified" : "2024-11-19T19:14:57Z",
  "published" : "2023-08-08T18:30:35Z",
  "aliases" : [ "CVE-2023-38758" ],
  "summary" : "wger Workout Manager Cross-site Scripting vulnerability",
  "details" : "Cross Site Scripting vulnerability in wger Project wger Workout Manager v.2.2.0a3 allows a remote attacker to gain privileges via the `license_author `field in the add-ingredient function in the `templates/ingredients/view.html`, `models/ingredients.py`, and `views/ingredients.py` components.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "wger"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2.2.0a3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-38758"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/0x72303074/CVE-Disclosures"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/wger/PYSEC-2023-143.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/wger-project/wger"
  }, {
    "type" : "WEB",
    "url" : "https://wger.de"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-17T19:08:16Z",
    "nvd_published_at" : "2023-08-08T16:15:11Z"
  }
}