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CVE-2020-35125 — Vulnerability in mautic/core — CVE Details

CRITICAL

Mautic is vulnerable to XSS vulnerability

Published May 15, 2024Updated July 8, 2026Source: osv

Summary

### 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

Advisory Timeline

  • First published May 15, 2024 (880 days ago).
  • Last revised July 8, 2026 — 784 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update mautic/core to 3.2.4 or later
composer require "mautic/core:^3.2.4"
Composer
Update mautic/core to 2.16.5 or later
composer require "mautic/core:^2.16.5"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (2)

Affects 1 ecosystem: packagist (1).

PackageEcosystemAffectedFixed In
mautic/core
packagist
3.0.0, 3.0.1, 3.0.2, 3.0.2-rc (+12 more)3.2.4
mautic/core
packagist
1.0.0, 1.0.0-beta, 1.0.0-beta2, 1.0.0-beta3 (+82 more)2.16.5

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-79
    Cross-site Scripting (XSS)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.6 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2020-35125?
Mautic is vulnerable to XSS vulnerability This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.6/10).
How do I check if my project is affected by CVE-2020-35125?
CVE-2020-35125 affects mautic/core. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2020-35125 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.6

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-42q7-95j7-w62m

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