CVE-2022-0877: Ssddanbrown/bookstack Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-5rcc-6cmj-7728
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CVSS 5.4
CWE-79
Published
Advisory Summary

CVE-2022-0877 is a MODERATE (CVSS 5.4) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Ssddanbrown/bookstack libraries in the Packagist ecosystem. The issue involves cross-site scripting in bookstack. Remediation is available by upgrading affected packages to version 22.02.3.

CVE-2022-0877 at a Glance

CVE Identifier CVE-2022-0877
GHSA Identifier GHSA-5rcc-6cmj-7728
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 Ssddanbrown/bookstack
Package Ecosystem Packagist
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-2022-0877

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

ssddanbrown/bookstack fixed: 22.02.3 
Upgrade ssddanbrown/bookstack to 22.02.3
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 ssddanbrown/bookstack

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-0877, inspect your project dependencies for Ssddanbrown/bookstack:

inspect dependencies for ssddanbrown/bookstack

Analyze the terminal output to locate any version of Ssddanbrown/bookstack in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 22.02.3), 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 Ssddanbrown/bookstack, 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

Iframe tags don't have a sandbox attribute, this makes an attacker able to execute malicious javascript via an iframe and perform phishing attacks. The sandbox attribute will block script execution and prevents the content to navigate its top-level browsing context which will stop this type of attack.

CVE-2022-0877 Affected Ssddanbrown/bookstack Versions

1 component(s)
Fixed Versions:
22.02.3
Product / Package Ecosystem Affected Versions Fixed Version
ssddanbrown/bookstack
 Packagist
< 22.02.3
22.02.3

References

NVD — CVE-2022-0877 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-0877
Security Fix Commit FIX COMMIT
https://github.com/bookstackapp/bookstack/commit/856fca8289b7370cafa033ea21c408e7d4303fd6
Ssddanbrown/bookstack Source Repository REPOSITORY
https://github.com/bookstackapp/bookstack
huntr.dev/bounties/b04df4e3-a... WEB
https://huntr.dev/bounties/b04df4e3-ae5a-4dc6-81ec-496248b15f3c

Frequently Asked Questions

What is CVE-2022-0877?
CVE-2022-0877 is a security vulnerability in Ssddanbrown/bookstack involving Cross-site Scripting in BookStack under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Ssddanbrown/bookstack versions are affected?
Affected versions include releases prior to 22.02.3 across affected packages: ssddanbrown/bookstack.
What version fixes CVE-2022-0877?
Upgrading to 22.02.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ssddanbrown/bookstack affected?
Yes, ssddanbrown/bookstack is affected in releases prior to 22.02.3. Upgrade your dependency to 22.02.3 or later.
What is the CVSS score of CVE-2022-0877?
CVE-2022-0877 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-2022-0877?
CVE-2022-0877 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-2022-0877?
Run the dependency tree command: 'inspect dependencies for ssddanbrown/bookstack'. 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-5rcc-6cmj-7728",
  "modified" : "2022-03-14T21:03:33Z",
  "published" : "2022-03-09T00:00:44Z",
  "aliases" : [ "CVE-2022-0877" ],
  "summary" : "Cross-site Scripting in BookStack",
  "details" : "Iframe tags don't have a sandbox attribute, this makes an attacker able to execute malicious javascript via an iframe and perform phishing attacks. The sandbox attribute will block script execution and prevents the content to navigate its top-level browsing context which will stop this type of attack.",
  "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" : "Packagist",
      "name" : "ssddanbrown/bookstack"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "22.02.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-0877"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bookstackapp/bookstack/commit/856fca8289b7370cafa033ea21c408e7d4303fd6"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/bookstackapp/bookstack"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.dev/bounties/b04df4e3-ae5a-4dc6-81ec-496248b15f3c"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-03-09T18:24:00Z",
    "nvd_published_at" : "2022-03-08T13:15:00Z"
  }
}