CVE-2023-31285: Serenity.Net.Core Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-93h6-wx7r-mgfp
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2023-31285 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Serenity.Net.Core libraries in the NuGet ecosystem. The issue involves cross site scripting (xss) in serenity. Remediation is available by upgrading affected packages to version 6.7.0.

CVE-2023-31285 at a Glance

CVE Identifier CVE-2023-31285
GHSA Identifier GHSA-93h6-wx7r-mgfp
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 Serenity.Net.Core
Package Ecosystem NuGet
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-2023-31285

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

Serenity.Net.Core fixed: 6.7.0 
Upgrade Serenity.Net.Core to 6.7.0
Serenity.Net.Services fixed: 6.7.0 
Upgrade Serenity.Net.Services to 6.7.0
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 Serenity.Net.Core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-31285, inspect your project dependencies for Serenity.Net.Core:

inspect dependencies for Serenity.Net.Core

Analyze the terminal output to locate any version of Serenity.Net.Core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.7.0), 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 Serenity.Net.Core, 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

An XSS issue was discovered in Serenity Serene (and StartSharp) before 6.7.0. When users upload temporary files, some specific file endings are not allowed, but it is possible to upload .html or .htm files containing an XSS payload. The resulting link can be sent to an administrator user.

CVE-2023-31285 Affected Serenity.Net.Core Versions

2 component(s)
Fixed Versions:
6.7.0
Product / Package Ecosystem Affected Versions Fixed Version
Serenity.Net.Core
nuget/Serenity.Net.Core
NuGet
< 6.7.0
6.7.0
Serenity.Net.Services
nuget/Serenity.Net.Services
NuGet
< 6.7.0
6.7.0

References

Serenity.Net.Core Source Repository REPOSITORY
https://github.com/serenity-is/Serenity
NVD — CVE-2023-31285 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-31285
Security Fix Commit FIX COMMIT
https://github.com/serenity-is/Serenity/commit/11b9d267f840513d04b4f4d4876de7823a6e48d2
Security Fix Commit FIX COMMIT
https://github.com/serenity-is/Serenity/commit/f54e9bfcf8ceb7f26f81a7362349bc1f63251d92
Security Fix Commit FIX COMMIT
https://github.com/serenity-is/serene/commit/6dce8162f4382badd429a9f0f1470acb64e8c4fd
Serenity.Net.Core Security Information SECURITY
http://packetstormsecurity.com/files/172648/Serenity-StartSharp-Software-File-Upload-XSS-User-Enumeration-Reusable-Tokens.html
seclists.org/fulldisclosure/2023... WEB
http://seclists.org/fulldisclosure/2023/May/14

Frequently Asked Questions

What is CVE-2023-31285?
CVE-2023-31285 is a security vulnerability in Serenity.Net.Core involving Cross Site Scripting (XSS) in Serenity under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Serenity.Net.Core versions are affected?
Affected versions include releases prior to 6.7.0 across affected packages: Serenity.Net.Core, Serenity.Net.Services.
What version fixes CVE-2023-31285?
Upgrading to 6.7.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Serenity.Net.Core affected?
Yes, Serenity.Net.Core is affected in releases prior to 6.7.0. Upgrade your dependency to 6.7.0 or later.
Is Serenity.Net.Services affected?
Yes, Serenity.Net.Services is affected in releases prior to 6.7.0. Upgrade your dependency to 6.7.0 or later.
What is the CVSS score of CVE-2023-31285?
CVE-2023-31285 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-2023-31285?
CVE-2023-31285 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 NuGet dependencies for CVE-2023-31285?
Run the dependency tree command: 'inspect dependencies for Serenity.Net.Core'. 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-93h6-wx7r-mgfp",
  "modified" : "2023-05-05T20:33:56Z",
  "published" : "2023-04-27T03:30:23Z",
  "aliases" : [ "CVE-2023-31285" ],
  "summary" : "Cross Site Scripting (XSS) in Serenity",
  "details" : "An XSS issue was discovered in Serenity Serene (and StartSharp) before 6.7.0. When users upload temporary files, some specific file endings are not allowed, but it is possible to upload .html or .htm files containing an XSS payload. The resulting link can be sent to an administrator user.",
  "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" : "NuGet",
      "name" : "Serenity.Net.Core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.7.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Serenity.Net.Services"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.7.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-31285"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/serenity-is/Serenity/commit/11b9d267f840513d04b4f4d4876de7823a6e48d2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/serenity-is/Serenity/commit/f54e9bfcf8ceb7f26f81a7362349bc1f63251d92"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/serenity-is/serene/commit/6dce8162f4382badd429a9f0f1470acb64e8c4fd"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/serenity-is/Serenity"
  }, {
    "type" : "WEB",
    "url" : "http://packetstormsecurity.com/files/172648/Serenity-StartSharp-Software-File-Upload-XSS-User-Enumeration-Reusable-Tokens.html"
  }, {
    "type" : "WEB",
    "url" : "http://seclists.org/fulldisclosure/2023/May/14"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-04-27T17:07:49Z",
    "nvd_published_at" : "2023-04-27T03:15:10Z"
  }
}