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9.1

MacCMS password recovery can be brute-forced to hijack accounts

CVE-2026-111356 · published today
Summary

The MacCMS platform allows unlimited attempts to guess the six‑digit code used for password recovery. An attacker who knows a user's email or phone number can request a code and keep trying until they guess it, then reset the account password and take control. Limit the number of tries or add additional verification to stop this abuse.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
magicblack maccms <= 2026.1000.4056
Original advisory text
MacCMS v10 through 2026.1000.4056 Account Takeover via Password Recovery Brute-Force
MacCMS v10 through 2026.1000.4056 does not limit attempts on the six-digit password recovery code, allowing unauthenticated attackers to take over member accounts. Attackers knowing a victim's email or phone can request a code and brute-force findpass_reset to overwrite the member's password.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker full control (estimated)
Severity
9.1 Critical
Type
CWE-307Improper Restriction of Excessive Authentication Attempts
Timeline
Published15 Oct 2026
Updated15 Oct 2026
First seen15 Oct 2026
Sources
CVE-2026-111356 · NVD
CVE-2026-111356 · MITRE
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