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TI-2026-71545 Aliases CVE-2026-89271GHSA-mr4c-8644-ggh2

Unauthenticated file write in WP-BusinessDirectory WordPress plugin

Priority LOW 30CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-434.

Summary

The WP-BusinessDirectory WordPress plugin through 4.0.2 is affected. Its unauthenticated upload handler does not restrict the type or destination of saved files (CWE-434). A remote unauthenticated attacker can write files with arbitrary content to arbitrary locations, though the flaw does not allow code execution on a default server configuration. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

The WP-BusinessDirectory WordPress plugin through 4.0.2 does not restrict the type or destination of files saved by an unauthenticated upload handler, allowing unauthenticated attackers to write files with arbitrary content to arbitrary locations, though not to execute code on a default server configuration.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00233 14th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
UnknownWP-BusinessDirectoryup to 4.0.2—No fix listedCNA
  • WP-BusinessDirectory VendorUnknown Affected up to 4.0.2 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for WP-BusinessDirectory.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-89271
  2. 2026-10-13 Alias added: GHSA-mr4c-8644-ggh2
  3. 2026-10-13 CVSS score added · CISA ADP
  4. 2026-10-13 Weakness changed · CISA ADP
  5. 2026-10-13 CISA SSVC decision points changed

References

Exploit 1

Sources

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