SB20261110257 - Open redirect in Habitica

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Main Vulnerability Database SB20261110257

SB20261110257 - Open redirect in Habitica

Published: November 10, 2026

Security Bulletin ID SB20261110257
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Open redirect (CVE-ID: N/A)

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to redirect users to an attacker-controlled site through Habitica's authentication flow.

The vulnerability exists due to improper redirect target validation in Habitica's sanitizeRedirect function when processing protocol-relative URLs that are subsequently assigned to window.location.href. A remote attacker can trick a user into following a crafted login URL containing redirectTo=//evil.example/attack to cause navigation to an external origin instead of an application path.


Remediation

Install update from vendor's website.

References