CVE-2022-41905: Wsgidav Cross Site Scripting Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-xx6g-jj35-pxjv
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CVSS 8.2
CWE-79
Published
Advisory Summary

CVE-2022-41905 is a HIGH (CVSS 8.2) cross site scripting vulnerability vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Wsgidav libraries in the PyPI ecosystem. The issue involves cross site scripting vulnerability in wsgidav when directory browsing is enabled. Remediation is available by upgrading affected packages to version 4.1.0.

CVE-2022-41905 at a Glance

CVE Identifier CVE-2022-41905
GHSA Identifier GHSA-xx6g-jj35-pxjv
Severity HIGH
CVSS v3.1 Base Score 8.2
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Wsgidav
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 8.2

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

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

How to Fix CVE-2022-41905

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

wsgidav fixed: 4.1.0 
pip install wsgidav>=4.1.0
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 wsgidav

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2022-41905, inspect your installed packages using pip:

pip show wsgidav

Analyze the terminal output to locate any version of Wsgidav in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.1.0), your application is affected.

Note: The pip show wsgidav 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 Wsgidav, 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

### Impact Implementations using this library with directory browsing enabled may be susceptible to [Cross Site Scripting (XSS)](https://owasp.org/www-community/attacks/xss/) attacks. ### Patches Users can upgrade to v4.1.0 ### Workarounds Set `dir_browser.enable = False` in the configuration. For instance, when using a Python dictionary to configure the library: ``` config = { # your normal configuration "dir_browser": { "enable": False }, } app = WsgiDAVApp(config) ``` ### For more information Note that an attacker cannot exploit this vulnerability, by simply uploading a file or folder with a manipulated file name. However if the WsgiDAV library is used in a scenario where untrusted data is displayed in the directory browser's user interface (e.g. 'realm' or user name, ...) XSS may happen. If you have any questions or comments about this advisory: * Open an issue in [mar10/wsgidav](https://github.com/mar10/wsgidav/) * See the [security policy](https://github.com/mar10/wsgidav/security/policy)

CVE-2022-41905 Affected Wsgidav Versions

1 component(s)
Fixed Versions:
4.1.0
Product / Package Ecosystem Affected Versions Fixed Version
wsgidav
pypi/wsgidav
PyPI
≥ 3.0.0a1
< 4.1.0
4.1.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/mar10/wsgidav/security/advisories/GHSA-xx6g-jj35-pxjv
NVD — CVE-2022-41905 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-41905
Security Fix Commit FIX COMMIT
https://github.com/mar10/wsgidav/commit/e9606ab0f42f4c1a6611bc3c52de299b0aba7726
Wsgidav Source Repository REPOSITORY
https://github.com/mar10/wsgidav
Wsgidav Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/wsgidav/PYSEC-2022-43018.yaml

Frequently Asked Questions

What is CVE-2022-41905?
CVE-2022-41905 is a security vulnerability in Wsgidav involving Cross Site Scripting vulnerability in wsgidav when directory browsing is enabled under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Wsgidav versions are affected?
Affected versions include releases prior to 4.1.0 across affected packages: wsgidav.
What version fixes CVE-2022-41905?
Upgrading to 4.1.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is wsgidav affected?
Yes, wsgidav is affected in releases prior to 4.1.0. Upgrade your dependency to 4.1.0 or later.
What is the CVSS score of CVE-2022-41905?
CVE-2022-41905 has a CVSS v3.1 base score of 8.2 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2022-41905?
CVE-2022-41905 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-2022-41905?
Run the dependency tree command: 'pip show wsgidav'. 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-xx6g-jj35-pxjv",
  "modified" : "2024-11-19T19:03:47Z",
  "published" : "2022-11-16T00:02:05Z",
  "aliases" : [ "CVE-2022-41905" ],
  "summary" : "Cross Site Scripting vulnerability in wsgidav when directory browsing is enabled",
  "details" : "### Impact\nImplementations using this library with directory browsing enabled may be susceptible to [Cross Site Scripting (XSS)](https://owasp.org/www-community/attacks/xss/) attacks.\n\n### Patches\nUsers can upgrade to v4.1.0\n\n### Workarounds\nSet `dir_browser.enable = False` in the configuration. For instance, when using a Python dictionary to configure the library:\n\n```\nconfig = {\n    # your normal configuration\n    \"dir_browser\": {\n      \"enable\": False\n    },\n}\napp = WsgiDAVApp(config)\n```\n\n### For more information\n\nNote that an attacker cannot exploit this vulnerability, by simply  uploading a file or folder with a manipulated file name.\nHowever if the WsgiDAV library is used in a scenario where untrusted data is displayed in the directory browser's user interface (e.g. 'realm' or user name, ...) XSS may happen.\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [mar10/wsgidav](https://github.com/mar10/wsgidav/)\n* See the [security policy](https://github.com/mar10/wsgidav/security/policy)\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "wsgidav"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0a1"
      }, {
        "fixed" : "4.1.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/mar10/wsgidav/security/advisories/GHSA-xx6g-jj35-pxjv"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-41905"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mar10/wsgidav/commit/e9606ab0f42f4c1a6611bc3c52de299b0aba7726"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/mar10/wsgidav"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/wsgidav/PYSEC-2022-43018.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-11-16T00:02:05Z",
    "nvd_published_at" : "2022-11-11T21:15:00Z"
  }
}