CVE-2026-116216
MacCMS v10 through 2026.1000.4056 Comment Impersonation via user_id Mass Assignment
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-915 |
| Vendor | maccmspro |
| Product | maccms10 |
| Published | Oct 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
maccmspro / maccms10
0 ≤ 2021.1000.2000
magicblack / maccms10
0 ≤ 2026.1000.4056
References
github.com: https://github.com/maccmspro/maccms10/issues/30 github.com: https://github.com/maccmspro/maccms10/blob/7f388ee0008faf5b01e5df7bf5e5a6ff4bbe13e8/application/index/controller/Comment.php#L37-L95 github.com: https://github.com/maccmspro/maccms10 vulncheck.com: https://www.vulncheck.com/advisories/maccms-v10-through-2026.1000.4056-comment-impersonation-via-user-id-mass-assignment
Credits
Abu Raihan Biswas