CVE-2024-35621: Getformwork/formwork Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-gx8m-f3mp-fg99
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CVSS 4.8
CWE-79
Published
Advisory Summary

CVE-2024-35621 is a MODERATE (CVSS 4.8) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Getformwork/formwork libraries in the Packagist ecosystem. The issue involves formwork cross-site scripting vulnerability in markdown fields. Remediation is available by upgrading affected packages to version 1.13.0.

CVE-2024-35621 at a Glance

CVE Identifier CVE-2024-35621
GHSA Identifier GHSA-gx8m-f3mp-fg99
Severity MODERATE
CVSS v3.1 Base Score 4.8
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Getformwork/formwork
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 4.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required High (PR:H)
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-2024-35621

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

getformwork/formwork fixed: 1.13.0 
Upgrade getformwork/formwork to 1.13.0
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 getformwork/formwork

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-35621, inspect your project dependencies for Getformwork/formwork:

inspect dependencies for getformwork/formwork

Analyze the terminal output to locate any version of Getformwork/formwork in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.13.0), 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 Getformwork/formwork, 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 Users with access to the administration panel with page editing permissions could insert `<script>` tags in markdown fields, which are exposed on the publicly accessible site pages, leading to potential XSS injections. ### Patches - [**Formwork 1.13.0**](https://github.com/getformwork/formwork/releases/tag/1.13.0) has been released with a patch that solves this vulnerability. Now the system config option `content.safe_mode` (enabled by default) controls whether HTML tags and potentially dangerous links are escaped. This is configurable as in some cases more flexibility should be given. Panel users should be only a controlled group of editors, which cannot enable the option by themselves, and not a generic group. This mitigates the chance of introducing vulnerabilities. - [**Formwork 2.x** (6adc302)](https://github.com/getformwork/formwork/commit/6adc302f5a294f2ffbbf1571dd4ffea6b7876723) adds a similar `content.safeMode` system option. Like Formwork 1.13.0, by default HTML tags and dangerous link are escaped. Even if enabled by an administrator, however, `<script>` and other dangerous tags are still converted to text, but secure tags are allowed. ### References https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-35621

CVE-2024-35621 Affected Getformwork/formwork Versions

1 component(s)
Fixed Versions:
1.13.0
Product / Package Ecosystem Affected Versions Fixed Version
getformwork/formwork
 Packagist
< 1.13.0
1.13.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/getformwork/formwork/security/advisories/GHSA-gx8m-f3mp-fg99
NVD — CVE-2024-35621 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-35621
Security Fix Commit FIX COMMIT
https://github.com/getformwork/formwork/commit/2d92e6dbf99a9a49797947afbda0cdd4e56e11df
Security Fix Commit FIX COMMIT
https://github.com/getformwork/formwork/commit/6adc302f5a294f2ffbbf1571dd4ffea6b7876723
Getformwork/formwork Source Repository REPOSITORY
https://github.com/getformwork/formwork

Frequently Asked Questions

What is CVE-2024-35621?
CVE-2024-35621 is a security vulnerability in Getformwork/formwork involving formwork Cross-site scripting vulnerability in Markdown fields under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Getformwork/formwork versions are affected?
Affected versions include releases prior to 1.13.0 across affected packages: getformwork/formwork.
What version fixes CVE-2024-35621?
Upgrading to 1.13.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is getformwork/formwork affected?
Yes, getformwork/formwork is affected in releases prior to 1.13.0. Upgrade your dependency to 1.13.0 or later.
What is the CVSS score of CVE-2024-35621?
CVE-2024-35621 has a CVSS v3.1 base score of 4.8 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2024-35621?
CVE-2024-35621 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-2024-35621?
Run the dependency tree command: 'inspect dependencies for getformwork/formwork'. 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-gx8m-f3mp-fg99",
  "modified" : "2024-05-31T20:33:40Z",
  "published" : "2024-05-28T16:54:31Z",
  "aliases" : [ "CVE-2024-35621" ],
  "summary" : "formwork Cross-site scripting vulnerability in Markdown fields",
  "details" : "### Impact\nUsers with access to the administration panel with page editing permissions could insert `<script>` tags in markdown fields, which are exposed on the publicly accessible site pages, leading to potential XSS injections.\n\n### Patches\n\n- [**Formwork 1.13.0**](https://github.com/getformwork/formwork/releases/tag/1.13.0) has been released with a patch that solves this vulnerability. Now the system config option `content.safe_mode` (enabled by default) controls whether HTML tags and potentially dangerous links are escaped. This is configurable as in some cases more flexibility should be given. Panel users should be only a controlled group of editors, which cannot enable the option by themselves, and not a generic group. This mitigates the chance of introducing vulnerabilities.\n- [**Formwork 2.x** (6adc302)](https://github.com/getformwork/formwork/commit/6adc302f5a294f2ffbbf1571dd4ffea6b7876723) adds a similar `content.safeMode` system option. Like Formwork 1.13.0, by default HTML tags and dangerous link are escaped. Even if enabled by an administrator, however, `<script>` and other dangerous tags are still converted to text, but secure tags are allowed.\n\n### References\nhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-35621\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "getformwork/formwork"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.13.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/getformwork/formwork/security/advisories/GHSA-gx8m-f3mp-fg99"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-35621"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/getformwork/formwork/commit/2d92e6dbf99a9a49797947afbda0cdd4e56e11df"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/getformwork/formwork/commit/6adc302f5a294f2ffbbf1571dd4ffea6b7876723"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/getformwork/formwork"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-28T16:54:31Z",
    "nvd_published_at" : "2024-05-28T16:15:16Z"
  }
}