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TI-2021-18768 Aliases CVE-2021-42338GHSA-pwgf-2vfp-fh6c

4MOSAn GCB Doctor - Improper Authorization

Priority MEDIUM 51CWE-285Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-285.

Summary

4MOSAn GCB Doctor’s login page has improper validation of Cookie, which allows an unauthenticated remote attacker to bypass authentication by code injection in cookie, and arbitrarily manipulate the system or interrupt services by upload and execution of arbitrary files.

Why it matters now

EPSS 0.05811 93rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
4MOSAnGCB Doctorup to 20210708(v2.0)—No fix listedCNA
  • GCB Doctor Vendor4MOSAn Affected up to 20210708(v2.0) Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:4mosan:gcb_doctor:*:*:*:*:*:*:*:*up to 20210708Vulnerable4MOSAn
  • cpe:2.3:a:4mosan:gcb_doctor:*:*:*:*:*:*:*:* Versions up to 20210708 Vulnerable ·4MOSAn

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42338
  2. 2026-10-03 Alias added: GHSA-pwgf-2vfp-fh6c

References

Advisory 1

  • TI-2021-19857 4MOSAn GCB Doctor - Unrestricted Upload of File CVSS 3.1CRITICAL 9.8

Sources

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