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TI-2026-76938 Aliases CVE-2026-113609GHSA-64xw-vwg3-qr88

Mark-of-the-Web bypass for PowerShell scripts in Bandisoft Bandizip

Priority LOW 21CWE-693Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-693.

Summary

Bandisoft Bandizip before 7.47 fails to propagate Mark-of-the-Web to extracted .ps1 and .psm1 files, a protection mechanism failure (CWE-693). Attackers can deliver unsigned PowerShell scripts or modules in downloaded archives, which run under the RemoteSigned policy when a user invokes them, bypassing zone-based execution protections.

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

Description from the CNA

Bandisoft Bandizip before 7.47 fails to propagate Mark-of-the-Web to extracted .ps1 and .psm1 files, allowing attackers to bypass zone-based execution protections. Attackers can deliver unsigned PowerShell scripts or modules in downloaded archives that run under the RemoteSigned policy when the user invokes them.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0018 7th percentileScored 2026-11-07
Fix Fixed Bandizip (Bandisoft): 7.47

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
BandisoftBandizipbefore 7.477.47Patch availableCNA
  • Bandizip VendorBandisoft Affected before 7.47 Fixed in 7.47 Patch available CNA

Remediation

Bandisoft Bandizip is fixed in version 7.47.

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

  • Fix · CNA Bandizip (Bandisoft) Fixed in 7.47

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-113609
  2. 2026-10-20 CISA SSVC decision points changed
  3. 2026-10-21 Alias added: GHSA-64xw-vwg3-qr88

References

Advisory 1

  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2025-24021 In Bandisoft Bandizip through 7.37, there is a Mark-of-the-Web Bypass Vulnerability. CVSS 3.1HIGH 7.8
  • TI-2024-30818 Bandisoft BandiView 7.05 is vulnerable to Incorrect Access Control in sub_0x3d80fc via a crafted POC file. CVSS 3.1MEDIUM 6.5
  • TI-2024-30820 Bandisoft BandiView 7.05 is vulnerable to Buffer Overflow via sub_0x410d1d. CVSS 3.1MEDIUM 6.3
  • TI-2024-30819 Bandisoft BandiView 7.05 is Incorrect Access Control via sub_0x232bd8 resulting in denial of service (DOS). CVSS 3.1MEDIUM 6.3
  • TI-2021-08341 Bandisoft ARK Library Out-of-bound Vulnerability CVSS 3.1CRITICAL 9.8
See all 11 →

Sources

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