Read the docs
TI-2025-04720 Aliases CVE-2025-5256GHSA-6vx9-9r2g-8373

Open Redirect vulnerability on user unlock path

Priority LOW 24CWE-601Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-601.

Summary

SummaryThis advisory addresses an Open Redirection vulnerability in Mautic's user unlocking endpoint. This vulnerability could be exploited by an attacker to redirect legitimate users to malicious websites, potentially leading to phishing attacks or the delivery of exploit kits. Open Redirection via returnUrl Parameter: An Open Redirection vulnerability exists in the /s/action/unlock/user.user/0 endpoint. The returnUrl parameter, intended for post-action redirection, is not properly validated. This allows an attacker to craft a URL that, when clicked by a user, redirects them to an arbitrary external website controlled by the attacker. MitigationUpdate Mautic to a version that properly validates or sanitizes the returnUrl parameter to ensure that redirects only occur to trusted, internal URLs or explicitly whitelisted domains.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00249 16th percentileScored 2026-11-07
Fix Fixed Mautic (Mautic): < 6.0.2, < 5.2.6, < 4.4.16mautic/core (Packagist): 4.4.16, 5.2.6, 6.0.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MauticMautic> 1.0.0 to before < 6.0.2, < 5.2.6, < 4.4.16< 6.0.2, < 5.2.6, < 4.4.16Patch availableCNA
—mautic/core (Packagist)1.0.0 to before 4.4.164.4.16Patch availableGHSA-6vx9-9r2g-8373
—mautic/core (Packagist)5.0.0-alpha to before 5.2.65.2.6Patch availableGHSA-6vx9-9r2g-8373
—mautic/core (Packagist)6.0.0-alpha to before 6.0.26.0.2Patch availableGHSA-6vx9-9r2g-8373
  • Mautic VendorMautic Affected > 1.0.0 to before < 6.0.2, < 5.2.6, < 4.4.16 Fixed in < 6.0.2, < 5.2.6, < 4.4.16 Patch available CNA
  • mautic/core (Packagist) Vendor— Affected 1.0.0 to before 4.4.16 Fixed in 4.4.16 Patch available GHSA-6vx9-9r2g-8373
  • mautic/core (Packagist) Vendor— Affected 5.0.0-alpha to before 5.2.6 Fixed in 5.2.6 Patch available GHSA-6vx9-9r2g-8373
  • mautic/core (Packagist) Vendor— Affected 6.0.0-alpha to before 6.0.2 Fixed in 6.0.2 Patch available GHSA-6vx9-9r2g-8373

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:acquia:mautic:*:*:*:*:*:*:*:*——Acquia
  • cpe:2.3:a:acquia:mautic:*:*:*:*:*:*:*:* Versions — — ·Acquia

Remediation

  • Fix · CNA Mautic (Mautic) Fixed in < 6.0.2, < 5.2.6, < 4.4.16
  • Fix · GHSA-6vx9-9r2g-8373 mautic/core (Packagist) Fixed in 4.4.16 Advisory →
  • Fix · GHSA-6vx9-9r2g-8373 mautic/core (Packagist) Fixed in 5.2.6 Advisory →
  • Fix · GHSA-6vx9-9r2g-8373 mautic/core (Packagist) Fixed in 6.0.2 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mautic < 6.0.2, < 5.2.6, < 4.4.16

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2024-31439 User name enumeration possible due to response time difference on password reset formPriority LOW 24
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-5256
  2. 2026-10-03 Alias added: GHSA-6vx9-9r2g-8373

References

Advisory 1

Other 2

  • TI-2022-09344 Cross-site scripting in Mautic CVSS 3.1CRITICAL 9.6
  • TI-2024-02543 Predictable Page Indexing Might Lead to Sensitive Data Exposure in Mautic CVSS 3.1MEDIUM 5.3
  • TI-2024-02544 Improper Access Control Issues Lead to Sensitive Data Exposure in Mautic CVSS 3.1MEDIUM 5.4
  • TI-2024-03218 Improper Access Control Leads to Server-Side Request Forgery in Mautic CVSS 3.1MEDIUM 5.0
  • TI-2024-31435 Remote Code Execution & File Deletion in Asset Uploads CVSS 3.1CRITICAL 9.9
  • TI-2018-05847 Mautic before 2.13.0 allows CSV injection. CVSS 3.0CRITICAL 9.8
See all 48 →

Sources

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