CVE-2025-27913

Description

Passbolt API before 5, if the server is misconfigured (with an incorrect installation process and disregarding of Health Check results), can send email messages with a domain name taken from an attacker-controlled HTTP Host header.

Category

2.1
CVSS
Severity: Low
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.02%
Vendor Advisory passbolt.com
Affected: Passbolt API
Published at:
Updated at:

References

Link Tags
https://www.passbolt.com/incidents/host-header-injection vendor advisory mitigation

Frequently Asked Questions

What is the severity of CVE-2025-27913?
CVE-2025-27913 has been scored as a low severity vulnerability.
How to fix CVE-2025-27913?
To fix CVE-2025-27913, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-27913 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-27913 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-27913?
CVE-2025-27913 affects Passbolt API.
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