CVE-2022-0960: Showdoc/showdoc Cross-Site Scripting Vulnerability

CRITICAL
Advisory Identifier: GHSA-rphc-h572-2x9f
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CVSS 9.0
CWE-434 CWE-79
Published
Advisory Summary

CVE-2022-0960 is a CRITICAL (CVSS 9.0) cross-site scripting vulnerability (CWE-434: Unrestricted Upload of File with Dangerous Type) affecting Showdoc/showdoc libraries in the Packagist ecosystem. The issue involves cross-site scripting in showdoc/showdoc. Remediation is available by upgrading affected packages to version 2.10.4.

CVE-2022-0960 at a Glance

CVE Identifier CVE-2022-0960
GHSA Identifier GHSA-rphc-h572-2x9f
Severity CRITICAL
CVSS v3.1 Base Score 9.0
CWE Classification CWE-434: Unrestricted Upload of File with Dangerous Type
Affected Product Showdoc/showdoc
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 9.0

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

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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2022-0960

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

showdoc/showdoc fixed: 2.10.4 
Upgrade showdoc/showdoc to 2.10.4
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 showdoc/showdoc

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-0960, inspect your project dependencies for Showdoc/showdoc:

inspect dependencies for showdoc/showdoc

Analyze the terminal output to locate any version of Showdoc/showdoc in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.10.4), 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-434: Unrestricted Upload of File with Dangerous Type, where the product allows the upload or transfer of dangerous file types that are automatically processed within its environment. In Showdoc/showdoc, 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

ShowDoc is a tool greatly applicable for an IT team to share documents online. showdoc/showdoc allows .properties files to upload which lead to stored XSS in versions prior to 2.10.4. This allows attackers to execute malicious scripts in the user's browser. This issue was patched in version 2.10.4. There is currently no known workaround.

CVE-2022-0960 Affected Showdoc/showdoc Versions

1 component(s)
Fixed Versions:
2.10.4
Product / Package Ecosystem Affected Versions Fixed Version
showdoc/showdoc
 Packagist
< 2.10.4
2.10.4

References

NVD — CVE-2022-0960 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-0960
Security Fix Commit FIX COMMIT
https://github.com/star7th/showdoc/commit/92bc6a83a3a60e01a0d2effb98ab47d8d7eab28f
Showdoc/showdoc Source Repository REPOSITORY
https://github.com/star7th/showdoc
huntr.dev/bounties/462cd8a7-b... WEB
https://huntr.dev/bounties/462cd8a7-b1a9-4e93-af71-b56ba1d7ad4e

Frequently Asked Questions

What is CVE-2022-0960?
CVE-2022-0960 is a security vulnerability in Showdoc/showdoc involving Cross-site Scripting in showdoc/showdoc under CWE-434: Unrestricted Upload of File with Dangerous Type.
Which Showdoc/showdoc versions are affected?
Affected versions include releases prior to 2.10.4 across affected packages: showdoc/showdoc.
What version fixes CVE-2022-0960?
Upgrading to 2.10.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is showdoc/showdoc affected?
Yes, showdoc/showdoc is affected in releases prior to 2.10.4. Upgrade your dependency to 2.10.4 or later.
What is the CVSS score of CVE-2022-0960?
CVE-2022-0960 has a CVSS v3.1 base score of 9.0 (CRITICAL) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2022-0960?
CVE-2022-0960 is classified under CWE-434: Unrestricted Upload of File with Dangerous Type (The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.).
How can I check Packagist dependencies for CVE-2022-0960?
Run the dependency tree command: 'inspect dependencies for showdoc/showdoc'. 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-rphc-h572-2x9f",
  "modified" : "2022-03-24T22:38:55Z",
  "published" : "2022-03-15T00:00:55Z",
  "aliases" : [ "CVE-2022-0960" ],
  "summary" : "Cross-site Scripting in showdoc/showdoc",
  "details" : "ShowDoc is a tool greatly applicable for an IT team to share documents online. showdoc/showdoc allows .properties files to upload which lead to stored XSS in versions prior to 2.10.4. This allows attackers to execute malicious scripts in the user's browser. This issue was patched in version 2.10.4. There is currently no known workaround.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "showdoc/showdoc"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.10.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-0960"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/star7th/showdoc/commit/92bc6a83a3a60e01a0d2effb98ab47d8d7eab28f"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/star7th/showdoc"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.dev/bounties/462cd8a7-b1a9-4e93-af71-b56ba1d7ad4e"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-434", "CWE-79" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-03-15T19:26:12Z",
    "nvd_published_at" : "2022-03-14T15:15:00Z"
  }
}