Read the docs
TI-2020-17837 Aliases CVE-2020-35125GHSA-42q7-95j7-w62m

A cross-site scripting (XSS) vulnerability in the forms component of Mautic before 3.2.4…

Priority MEDIUM 46CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

A cross-site scripting (XSS) vulnerability in the forms component of Mautic before 3.2.4 allows remote attackers to inject executable JavaScript via mautic[return] (a different attack method than CVE-2020-35124, but also related to the Referer concept).

Why it matters now

EPSS 0.02727 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed mautic/core (Packagist): 2.16.5, 3.2.4

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—mautic/core (Packagist)before 2.16.52.16.5Patch availableGHSA-42q7-95j7-w62m
—mautic/core (Packagist)3.0.0 to before 3.2.43.2.4Patch availableGHSA-42q7-95j7-w62m
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • mautic/core (Packagist) Vendor— Affected before 2.16.5 Fixed in 2.16.5 Patch available GHSA-42q7-95j7-w62m
  • mautic/core (Packagist) Vendor— Affected 3.0.0 to before 3.2.4 Fixed in 3.2.4 Patch available GHSA-42q7-95j7-w62m

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:acquia:mautic:*:*:*:*:*:*:*:*before 2.16.5; 3.0.0 to before 3.2.4VulnerableAcquia
  • cpe:2.3:a:acquia:mautic:*:*:*:*:*:*:*:* Versions before 2.16.5; 3.0.0 to before 3.2.4 Vulnerable ·Acquia

Remediation

  • Fix · GHSA-42q7-95j7-w62m mautic/core (Packagist) Fixed in 2.16.5 Advisory →
  • Fix · GHSA-42q7-95j7-w62m mautic/core (Packagist) Fixed in 3.2.4 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-35125
  2. 2026-10-03 Alias added: GHSA-42q7-95j7-w62m

References

Exploit 1

Patch 1

Advisory 3

Other 2

  • TI-2022-09344 Cross-site scripting in Mautic CVSS 3.1CRITICAL 9.6
  • TI-2024-31435 Remote Code Execution & File Deletion in Asset Uploads CVSS 3.1CRITICAL 9.9
  • TI-2020-17836 A cross-site scripting (XSS) vulnerability in the assets component of Mautic before 3.2.4… CVSS 3.1CRITICAL 9.6
  • TI-2022-09342 Improper regex in htaccess file CVSS 3.1CRITICAL 9.1
  • TI-2021-09250 XSS Cross-site Scripting Stored (XSS) - Description field CVSS 3.1CRITICAL 9.0
  • TI-2020-17840 Mautic before 3.2.4 is affected by stored XSS. CVSS 3.1CRITICAL 9.0
See all 34 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences