CVE-2021-3961: Snipe/snipe it Cross-Site Scripting Vulnerability

HIGH
Advisory Identifier: GHSA-c65v-p733-9796
Share
CVSS 8.0
CWE-79
Published
Advisory Summary

CVE-2021-3961 is a HIGH (CVSS 8.0) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Snipe/snipe it libraries in the Packagist ecosystem. The issue involves cross-site scripting in snipe/snipe-it. Remediation is available by upgrading affected packages to version 5.3.2.

CVE-2021-3961 at a Glance

CVE Identifier CVE-2021-3961
GHSA Identifier GHSA-c65v-p733-9796
Severity HIGH
CVSS v3.1 Base Score 8.0
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Snipe/snipe it
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.0

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:U/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 Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2021-3961

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

snipe/snipe-it fixed: 5.3.2 
Upgrade snipe/snipe-it to 5.3.2
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 snipe/snipe-it

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-3961, inspect your project dependencies for Snipe/snipe it:

inspect dependencies for snipe/snipe-it

Analyze the terminal output to locate any version of Snipe/snipe it in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.3.2), 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 Snipe/snipe it, 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

snipe-it is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVE-2021-3961 Affected Snipe/snipe it Versions

1 component(s)
Fixed Versions:
5.3.2
Product / Package Ecosystem Affected Versions Fixed Version
snipe/snipe-it
 Packagist
< 5.3.2
5.3.2

References

NVD — CVE-2021-3961 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3961
Security Fix Commit FIX COMMIT
https://github.com/snipe/snipe-it/commit/7ce5993f5ae9d713a0955c2fd8e2dff7a7ce886e
huntr.dev/bounties/5987aed5-6... WEB
https://huntr.dev/bounties/5987aed5-6613-4937-8a3e-d48009b7da10

Frequently Asked Questions

What is CVE-2021-3961?
CVE-2021-3961 is a security vulnerability in Snipe/snipe it involving Cross-site Scripting in snipe/snipe-it under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Snipe/snipe it versions are affected?
Affected versions include releases prior to 5.3.2 across affected packages: snipe/snipe-it.
What version fixes CVE-2021-3961?
Upgrading to 5.3.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is snipe/snipe-it affected?
Yes, snipe/snipe-it is affected in releases prior to 5.3.2. Upgrade your dependency to 5.3.2 or later.
What is the CVSS score of CVE-2021-3961?
CVE-2021-3961 has a CVSS v3.1 base score of 8.0 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2021-3961?
CVE-2021-3961 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-2021-3961?
Run the dependency tree command: 'inspect dependencies for snipe/snipe-it'. 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-c65v-p733-9796",
  "modified" : "2021-11-22T18:39:54Z",
  "published" : "2021-11-23T18:17:33Z",
  "aliases" : [ "CVE-2021-3961" ],
  "summary" : "Cross-site Scripting in snipe/snipe-it",
  "details" : "snipe-it is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "snipe/snipe-it"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.3.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-3961"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/snipe/snipe-it/commit/7ce5993f5ae9d713a0955c2fd8e2dff7a7ce886e"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.dev/bounties/5987aed5-6613-4937-8a3e-d48009b7da10"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-11-22T18:39:54Z",
    "nvd_published_at" : "2021-11-19T12:15:00Z"
  }
}