CVE-2026-80200
Kimai before 2.53.0 Open Redirect via RelayState
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 25, 2026
- Updated
- Oct 8, 2026
- Reserved
- Aug 25, 2026
Description
Kimai before 2.53.0 contains an open redirect vulnerability in the SAML authentication success handler that accepts unvalidated RelayState POST parameters as redirect destinations. Attackers with IdP access can supply malicious RelayState values to redirect authenticated users to attacker-controlled URLs for credential theft or phishing attacks.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N | VulnCheck |
| 3.1 | 4.7 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
Affected Products
| Product | Versions |
|---|---|
kimaikimai |
|
References
- GitHub Security Advisory (GHSA-3jp4-mhh4-gcgr)vendor-advisory
- VulnCheck Advisory: Kimai before 2.53.0 Open Redirect via RelayStatethird-party-advisory
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