CVE-2026-13163
- Source
- https://cve.org/CVERecord?id=CVE-2026-13163
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-13163.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-13163
- Published
- 2026-06-24T12:49:05Z
- Modified
- 2026-08-12T03:51:40Z
- Severity
-
- 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N CVSS Calculator
- Summary
- Lack of input validation in Mailerup input parameter leads to Open Redirect
- Details
-
Open redirect vulnerability (CWE-601) in the _safe_redirect function of the click-tracking endpoint (/c//) in Mailerup <1.0.0 on all platforms allows remote unauthenticated attackers to redirect victims to arbitrary external sites and conduct phishing attacks via a crafted u query parameter, because the URL scheme is validated (blocking javascript: and data:) but the destination host is not restricted to an allowlist, and a signing.BadSignature exception is silently caught so a valid signed token is not required.
- Database specific
{ "cna_assigner": "Secur0", "cwe_ids": [ "CWE-601" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13163.json", "unresolved_ranges": [ { "extracted_events": [ { "fixed": "1.0.1" } ], "source": "AFFECTED_FIELD" }, { "extracted_events": [ { "fixed": "1.0.1" } ], "source": "CPE_FIELD" } ] }- References