Read the docs
TI-2026-75090 Aliases CVE-2026-111356

Password recovery brute-force in MacCMS allows account takeover

Priority HIGH 74CWE-307Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-307.

Summary

MacCMS by magicblack, through 2026.1000.4056, does not limit attempts on the six-digit password recovery code. An unauthenticated remote attacker who knows a victim's email or phone can request a code and brute-force the reset to overwrite the member's password, taking over the account. This is classified as CWE-307.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00448 39th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
magicblackMacCMSup to 2026.1000.4056—No fix listedCNA
  • MacCMS Vendormagicblack Affected up to 2026.1000.4056 Fixed in — No fix listed CNA

Remediation

No fixed version is listed for MacCMS.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-111356
  2. 2026-10-16 Priority changed: MEDIUM → LOW
  3. 2026-10-16 CISA SSVC decision points changed
  4. 2026-10-16 Priority changed: LOW → HIGH

References

Advisory 1

Other 3

  • TI-2026-61695 magicblack MacCMS10 Template .%40template%40default%40html%40label.html os command injection CVSS 4.0MEDIUM 5.1
  • TI-2026-80388 Password recovery flaw in MacCMS v10 allows account takeover CVSS 4.0CRITICAL 9.3
  • TI-2026-80390 Mass assignment in MacCMS lets anonymous comments impersonate users CVSS 4.0MEDIUM 6.9
  • TI-2026-49903 MacCMS10 - Incomplete Function Blacklist in Template Editor Enables Authenticated RCE CVSS 3.1HIGH 7.2
  • TI-2026-80389 Race condition in MacCMS lets members reuse recharge cards CVSS 4.0LOW 2.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences