CVE-2026-116216mediumCWE-915

CVE-2026-116216: medium-severity vulnerability in maccmspro maccms10

MacCMS v10 through 2026.1000.4056 Comment Impersonation via user_id Mass Assignment

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.9epss 0.3%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
maccmspro · maccms10magicblack · maccms10
Related CVEs — maccmspro maccms10

In the same product, most dangerous first.

CVE-2026-71232HIGHMacCMS10 - Incomplete Function Blacklist in Template Editor Enables Authenticated RCEEPSS 0.5%CVE-2026-116214CRITICALMacCMS v10 before 2026.1000.4054 Account Takeover via Unbound Password Recovery CodeEPSS 0.5%CVE-2026-116215LOWMacCMS v10 through 2026.1000.4056 Race Condition via Card RedemptionEPSS 0.2%