CVE-2025-5256
published 2025-05-28CVE-2025-5256: SummaryThis advisory addresses an Open Redirection vulnerability in Mautic's user unlocking endpoint. This vulnerability could be exploited by an attacker to…
PriorityP428medium5.4CVSS 3.1
AVNACLPRNUIRSUCLILAN
EPSS
0.20%
10.4th percentile
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.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mautic | core | >= 1.0.0 < 4.4.16 | 4.4.16 |
| mautic | core | >= 5.0.0-alpha < 5.2.6 | 5.2.6 |
| mautic | core | >= 6.0.0-alpha < 6.0.2 | 6.0.2 |
| mautic | mautic | >= > 1.0.0 < < 6.0.2, < 5.2.6, < 4.4.16 | < 6.0.2, < 5.2.6, < 4.4.16 |
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OSV
Mautic has an Open Redirect vulnerability on user unlock path.
osv·2025-05-28
CVE-2025-5256 [MEDIUM] Mautic has an Open Redirect vulnerability on user unlock path.
Mautic has an Open Redirect vulnerability on user unlock path.
### Summary
This 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.
### Mitigation
Update Mautic to a version that properly validates or sanitizes
GHSA
Mautic has an Open Redirect vulnerability on user unlock path.
ghsa·2025-05-28
CVE-2025-5256 [MEDIUM] CWE-601 Mautic has an Open Redirect vulnerability on user unlock path.
Mautic has an Open Redirect vulnerability on user unlock path.
### Summary
This 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.
### Mitigation
Update Mautic to a version that properly validates or sanitizes
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-05-28
Published