CVE-2020-35125: Mautic/core Cross-Site Scripting Vulnerability

CRITICAL
Advisory Identifier: GHSA-42q7-95j7-w62m
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CVSS 9.6
CWE-79
Published
Advisory Summary

CVE-2020-35125 is a CRITICAL (CVSS 9.6) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Mautic/core libraries in the Packagist ecosystem. The issue involves mautic is vulnerable to xss vulnerability. Remediation is available by upgrading affected packages to version 2.16.5, 3.2.4.

CVE-2020-35125 at a Glance

CVE Identifier CVE-2020-35125
GHSA Identifier GHSA-42q7-95j7-w62m
Severity CRITICAL
CVSS v3.1 Base Score 9.6
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Mautic/core
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 9.6

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:H/I:H/A:H).

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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2020-35125

To remediate this vulnerability, upgrade all affected Mautic/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.

mautic/core fixed: 2.16.5 
Upgrade mautic/core to 2.16.5
mautic/core fixed: 3.2.4 
Upgrade mautic/core to 3.2.4
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 mautic/core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-35125, inspect your project dependencies for Mautic/core:

inspect dependencies for mautic/core

Analyze the terminal output to locate any version of Mautic/core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.16.5), 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 Mautic/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

### Impact This is a cross-site scripting vulnerability which affects every version of Mautic and could allow an attacker unauthorised administrator level access to Mautic. This vulnerability was reported by Naveen Sunkavally at Horizon3.ai. ### Patches Upgrade to 3.2.4 or 2.16.5. Link to patch for 2.x versions: https://github.com/mautic/mautic/compare/2.16.4...2.16.5.diff Link to patch for 3.x versions: https://github.com/mautic/mautic/compare/3.2.2...3.2.4.diff ### Workarounds None ### For more information If you have any questions or comments about this advisory: * Post in https://forum.mautic.org/c/support * Email us at security@mautic.org

CVE-2020-35125 Affected Mautic/core Versions

2 component(s)
Fixed Versions:
2.16.53.2.4
Product / Package Ecosystem Affected Versions Fixed Version
mautic/core
 Packagist
< 2.16.5
2.16.5
mautic/core
 Packagist
≥ 3.0.0
< 3.2.4
3.2.4

References

GitHub Advisory / Wiki ADVISORY
https://github.com/mautic/mautic/security/advisories/GHSA-42q7-95j7-w62m
NVD — CVE-2020-35125 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-35125
forum.mautic.org/c/announcements/16 WEB
https://forum.mautic.org/c/announcements/16
Mautic/core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/mautic/core/CVE-2020-35125.yaml
packagist.org/packages/mautic/cor... WEB
https://packagist.org/packages/mautic/core
www.horizon3.ai/disclosures/mautic-... WEB
https://www.horizon3.ai/disclosures/mautic-unauth-xss-to-rce
Mautic/core Release RELEASE
https://www.mautic.org/blog/community/security-release-all-versions-mautic-prior-2-16-5-and-3-2-4

Frequently Asked Questions

What is CVE-2020-35125?
CVE-2020-35125 is a security vulnerability in Mautic/core involving Mautic is vulnerable to XSS vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Mautic/core versions are affected?
Affected versions include releases prior to 2.16.5, 3.2.4 across affected packages: mautic/core.
What version fixes CVE-2020-35125?
Upgrading to 2.16.5, 3.2.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is mautic/core affected?
Yes, mautic/core is affected in releases prior to 2.16.5, 3.2.4. Upgrade your dependency to 2.16.5, 3.2.4 or later.
What is the CVSS score of CVE-2020-35125?
CVE-2020-35125 has a CVSS v3.1 base score of 9.6 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2020-35125?
CVE-2020-35125 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-2020-35125?
Run the dependency tree command: 'inspect dependencies for mautic/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-42q7-95j7-w62m",
  "modified" : "2024-05-15T17:33:20Z",
  "published" : "2024-05-15T17:33:20Z",
  "aliases" : [ "CVE-2020-35125" ],
  "summary" : "Mautic is vulnerable to XSS vulnerability",
  "details" : "### Impact\nThis is a cross-site scripting vulnerability which affects every version of Mautic and could allow an attacker unauthorised administrator level access to Mautic.\n\nThis vulnerability was reported by Naveen Sunkavally at Horizon3.ai.\n\n### Patches\nUpgrade to 3.2.4 or 2.16.5.\n\nLink to patch for 2.x versions: https://github.com/mautic/mautic/compare/2.16.4...2.16.5.diff\n\nLink to patch for 3.x versions: https://github.com/mautic/mautic/compare/3.2.2...3.2.4.diff\n\n### Workarounds\nNone\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Post in https://forum.mautic.org/c/support\n* Email us at security@mautic.org",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "mautic/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.16.5"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "mautic/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.2.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/mautic/mautic/security/advisories/GHSA-42q7-95j7-w62m"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-35125"
  }, {
    "type" : "WEB",
    "url" : "https://forum.mautic.org/c/announcements/16"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/mautic/core/CVE-2020-35125.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://packagist.org/packages/mautic/core"
  }, {
    "type" : "WEB",
    "url" : "https://www.horizon3.ai/disclosures/mautic-unauth-xss-to-rce"
  }, {
    "type" : "WEB",
    "url" : "https://www.mautic.org/blog/community/security-release-all-versions-mautic-prior-2-16-5-and-3-2-4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-15T17:33:20Z",
    "nvd_published_at" : "2021-02-09T22:15:13Z"
  }
}