Description

A Host Header Poisoning vulnerability exists in Monica 4.1.2 due to improper handling of the HTTP Host header in app/Providers/AppServiceProvider.php, combined with the default misconfiguration where the "app.force_url" is not set and default is "false". The application generates absolute URLs (such as those used in password reset emails) using the user-supplied Host header. This allows remote attackers to poison the password reset link sent to a victim,

INFO

Published Date :

2026-02-20T00:00:00.000Z

Last Modified :

2026-02-23T20:37:29.313Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2026-26747 vulnerability.

Vendors Products
Monicahq
  • Monica
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-26747.

URL Resource
https://github.com/hungnqdz/cve-research/blob/main/CVE-2026-26747.md cve-icon cve-icon
https://github.com/monicahq/monica cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact