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CVE-2025-5256— Open Redirect vulnerability on user unlock path

Quick assessment

Affected
Mautic Mautic
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mautic是Mautic开源的一款开源的营销自动化软件。该软件能够监控管理网站、发送电子邮件并管理客户资源。 Mautic 6.0.2之前版本存在安全漏洞，该漏洞源于returnUrl参数验证不足，可能导致开放重定向攻击。

CVSS 5.4 · Medium EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-5256

Vulnerability Information
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Vulnerability Title
Open Redirect vulnerability on user unlock path
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
Mautic 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mautic是Mautic开源的一款开源的营销自动化软件。该软件能够监控管理网站、发送电子邮件并管理客户资源。 Mautic 6.0.2之前版本存在安全漏洞，该漏洞源于returnUrl参数验证不足，可能导致开放重定向攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mautic Mautic > 1.0.0 ~ < 6.0.2, < 5.2.6, < 4.4.16 -

II. Public POCs for CVE-2025-5256

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III. Intelligence Information for CVE-2025-5256

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Same Patch Batch · Mautic · 2025-05-28 · 5 CVEs total

CVE-2025-5257 6.5 MEDIUM Predictable Page Indexing Might Lead to Sensitive Data Exposure
CVE-2024-47057 5.3 MEDIUM User name enumeration possible due to response time difference on password reset form
CVE-2024-47056 5.1 MEDIUM Mautic does not shield .env files from web traffic
CVE-2024-47055 4.3 MEDIUM Segment cloning doesn't have a proper permission check

IV. Related Vulnerabilities

Same product: Mautic
Same vendor: Mautic
Same weakness: CWE-601

V. Comments for CVE-2025-5256

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