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Advisories

MacCMS v10 before 2026.1000.4054 Account Takeover via Unbound Password Recovery Code

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Severity
critical
Date
Affecting

  • maccms10 <= 2021.1000.2000

  • maccms10 >= 0, < 2026.1000.4054

CWE
  • CWE-640 Weak Password Recovery Mechanism for Forgotten Password
CVSS
9.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
Abu Raihan Biswas
Description
MacCMS v10 before 2026.1000.4054 contains an authentication bypass vulnerability that allows unauthenticated attackers to reset any member's password because check_msg() never compares msg_to. Attackers can request a recovery code to their own mailbox via user/findpass_msg, then submit it to user/findpass_reset with the victim's email or phone to take over the account.

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