Description
MacCMS v10 through 2026.1000.4056 contains a mass assignment vulnerability in index/Comment::saveData() that allows unauthenticated attackers to set arbitrary mac_comment columns including user_id. Attackers can submit anonymous comments with a crafted user_id parameter to attribute them to any registered member, displaying that member's avatar and impersonating them.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| maccmspro | maccms10 | ≤ 2021.1000.2000 | — |
| magicblack | maccms10 | ≤ 2026.1000.4056 | — |
References
- GitHub Issue #30 issue-tracking
- https://github.com/maccmspro/maccms10/blob/7f388ee0008faf5b01e5df7bf5e5a6ff4bbe13e8/application/index/controller/Comment.php#L37-L95 technical-description
- https://github.com/maccmspro/maccms10 product
- VulnCheck Advisory: MacCMS v10 through 2026.1000.4056 Comment Impersonation via user_id Mass Assignment third-party-advisory