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Vulnerabilities

Vulnerability · CVE-2025-5256

SummaryThis advisory addresses an Open Redirection vulnerability in Mautic's user unlocking endpoint.

Published May 28, 2025 · catalog updated May 28, 2025 · Mautic Mautic

Check this week

CVE-2025-5256 is not in CISA KEV. FIRST estimates a 24.00% chance of exploitation in the next 30 days. Check whether you run Mautic Mautic.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
24.00%
Remediation
Version ranges on file
Affected products
vendor Mautic Mautic > 1.0.0 << 6.0.2, < 5.2.6, < 4.4.16

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 e

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Mautic Mautic > 1.0.0 << 6.0.2, < 5.2.6, < 4.4.16> 1.0.0 << 6.0.2, < 5.2.6, < 4.4.16

How to fix CVE-2025-5256

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-5256 is not in CISA KEV. FIRST estimates a 24.00% chance of exploitation in the next 30 days. Check whether you run Mautic Mautic.

Which versions are affected?

Compare what you have installed with Mautic Mautic > 1.0.0 << 6.0.2, < 5.2.6, < 4.4.16 > 1.0.0 << 6.0.2, < 5.2.6, < 4.4.16. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 24.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 28, 2025 · EUVD

    Detected

    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 e

  2. May 28, 2025 · EUVD

    Updated

    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 e

Sources

  • CVE.orgVulnerability recordCVE-2025-5256

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-16192

    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.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog May 28, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.