CVE-2024-55878: Shuchkin/simplexlsx :readXfs And SimpeXLSX::toHTMLEx Vulnerability

MODERATE
Advisory Identifier: GHSA-x6mh-rjwm-8ph7
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CVSS 6.8
CWE-79
Published
Advisory Summary

CVE-2024-55878 is a MODERATE (CVSS 6.8) :readxfs and simpexlsx::tohtmlex vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Shuchkin/simplexlsx libraries in the Packagist ecosystem. The issue involves :readxfs and simpexlsx::tohtmlex. Remediation is available by upgrading affected packages to version 1.1.12.

CVE-2024-55878 at a Glance

CVE Identifier CVE-2024-55878
GHSA Identifier GHSA-x6mh-rjwm-8ph7
Severity MODERATE
CVSS v3.1 Base Score 6.8
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Shuchkin/simplexlsx
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.8

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:H/I:N/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 High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2024-55878

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

shuchkin/simplexlsx fixed: 1.1.12 
Upgrade shuchkin/simplexlsx to 1.1.12
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 shuchkin/simplexlsx

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-55878, inspect your project dependencies for Shuchkin/simplexlsx:

inspect dependencies for shuchkin/simplexlsx

Analyze the terminal output to locate any version of Shuchkin/simplexlsx in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.1.12), 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 Shuchkin/simplexlsx, 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 When calling the extended toHTMLEx method, it is possible to execute arbitrary JavaScript code. ### Patches The supplied patch resolves this vulnerability for SimpleXLSX. Use 1.1.12 ### Workarounds Don't use direct publication via toHTMLEx *** This vulnerability was discovered by Aleksey Solovev (Positive Technologies)

CVE-2024-55878 Affected Shuchkin/simplexlsx Versions

1 component(s)
Fixed Versions:
1.1.12
Product / Package Ecosystem Affected Versions Fixed Version
shuchkin/simplexlsx
 Packagist
≥ 1.0.12
< 1.1.12
1.1.12

References

GitHub Advisory / Wiki ADVISORY
https://github.com/shuchkin/simplexlsx/security/advisories/GHSA-x6mh-rjwm-8ph7
NVD — CVE-2024-55878 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-55878
Security Fix Commit FIX COMMIT
https://github.com/shuchkin/simplexlsx/commit/cb4e716259e83d18e89292a4f1b721f4d34e28c2
Shuchkin/simplexlsx Source Repository REPOSITORY
https://github.com/shuchkin/simplexlsx

Frequently Asked Questions

What is CVE-2024-55878?
CVE-2024-55878 is a security vulnerability in Shuchkin/simplexlsx involving :readXfs and SimpeXLSX::toHTMLEx under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Shuchkin/simplexlsx versions are affected?
Affected versions include releases prior to 1.1.12 across affected packages: shuchkin/simplexlsx.
What version fixes CVE-2024-55878?
Upgrading to 1.1.12 (or the latest patched release for your respective branch) resolves the vulnerability.
Is shuchkin/simplexlsx affected?
Yes, shuchkin/simplexlsx is affected in releases prior to 1.1.12. Upgrade your dependency to 1.1.12 or later.
What is the CVSS score of CVE-2024-55878?
CVE-2024-55878 has a CVSS v3.1 base score of 6.8 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N.
What CWE is associated with CVE-2024-55878?
CVE-2024-55878 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-2024-55878?
Run the dependency tree command: 'inspect dependencies for shuchkin/simplexlsx'. 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-x6mh-rjwm-8ph7",
  "modified" : "2024-12-12T22:31:57Z",
  "published" : "2024-12-12T19:22:53Z",
  "aliases" : [ "CVE-2024-55878" ],
  "summary" : "Cross-site Scripting vulnerability in SimpleXLSXEx::readXfs and SimpeXLSX::toHTMLEx",
  "details" : "### Impact\nWhen calling the extended toHTMLEx method, it is possible to execute arbitrary JavaScript code.\n\n### Patches\nThe supplied patch resolves this vulnerability for SimpleXLSX. Use 1.1.12\n\n### Workarounds\nDon't use direct publication via toHTMLEx\n\n***\nThis vulnerability was discovered by Aleksey Solovev (Positive Technologies)\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "shuchkin/simplexlsx"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0.12"
      }, {
        "fixed" : "1.1.12"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/shuchkin/simplexlsx/security/advisories/GHSA-x6mh-rjwm-8ph7"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-55878"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/shuchkin/simplexlsx/commit/cb4e716259e83d18e89292a4f1b721f4d34e28c2"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/shuchkin/simplexlsx"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-12-12T19:22:53Z",
    "nvd_published_at" : "2024-12-12T20:15:21Z"
  }
}