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TI-2021-08356 Aliases CVE-2021-26639GHSA-6fq5-356h-9jrc

WISA Smart Wing CMS File Download Vulnerability

Priority LOW 36CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-494.

Summary

This vulnerability is caused by the lack of validation of input values for specific functions if WISA Smart Wing CMS. Remote attackers can use this vulnerability to leak all files in the server without logging in system.

Why it matters now

EPSS 0.00477 41st percentileScored 2026-11-07
Fix Fixed Smart Wing CMS (WISA corp.): r18715.20211229

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
WISA corp.Smart Wing CMSbefore r18715.20211229r18715.20211229Patch availableCNA
  • Smart Wing CMS VendorWISA corp. Affected before r18715.20211229 Fixed in r18715.20211229 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:wisa:smart_wing_cms:*:*:*:*:*:*:*:*before r18715.20211229VulnerableWISA corp.
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*not specified by NVDRunning onLinux
  • cpe:2.3:a:wisa:smart_wing_cms:*:*:*:*:*:*:*:* Versions before r18715.20211229 Vulnerable ·WISA corp.
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux

Remediation

  • Fix · CNA Smart Wing CMS (WISA corp.) Fixed in r18715.20211229

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-26639
  2. 2026-10-03 Alias added: GHSA-6fq5-356h-9jrc

References

Advisory 1

  • TI-2022-07806 WISA Smart Wing CMS Remote Command Execution Vulnerability CVSS 3.1CRITICAL 9.8

Sources

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