CVE-2026-119049
FreeMail before 5.3.2 Authorization Bypass via /api/create Mailbox Claiming
- State
- Published
- Severity
- 7.2 High
- Published
- Oct 29, 2026
- Updated
- Oct 29, 2026
- Reserved
- Oct 29, 2026
Description
FreeMail before 5.3.2 contains an authorization bypass vulnerability that allows authenticated users to claim another user's existing mailbox via the POST /api/create endpoint. Attackers who know a victim's address can become co-owners through assignMailboxToUser to read messages and verification codes, set forwarding, and delete mail.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.2 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.6 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L | VulnCheck |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
FreeMailidinging |
|
References
- GitHub Issue #73issue-tracking
- https://github.com/idinging/freemailproduct
- https://github.com/idinging/freemail/commit/62ed3afdbb4de90a135c12de928e586caf01b5a1patch
- FreeMail v5.3.2 Release Notesrelease-notes
- https://github.com/idinging/freemail/blob/a95c1710e7eeb9f2c74a49ef962f4f43a36695b3/src/db/users.js#L137-L163technical-description
- VulnCheck Advisory: FreeMail before 5.3.2 Authorization Bypass via /api/create Mailbox Claimingthird-party-advisory
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