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TI-2021-16748 Aliases CVE-2021-39393GHSA-vcjr-hpcg-vc53

mm-wiki v0.2.1 was discovered to contain a cross-site scripting (XSS) vulnerability via the markdown editor.

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

mm-wiki v0.2.1 was discovered to contain a cross-site scripting (XSS) vulnerability via the markdown editor.

Why it matters now

EPSS 0.00597 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mm-wiki_project:mm-wiki:0.2.1:*:*:*:*:*:*:*0.2.1VulnerableMm-wiki Project
  • cpe:2.3:a:mm-wiki_project:mm-wiki:0.2.1:*:*:*:*:*:*:* Versions 0.2.1 Vulnerable ·Mm-wiki Project

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-39393
  2. 2026-10-03 Alias added: GHSA-vcjr-hpcg-vc53

References

Exploit 1

  • TI-2020-13577 Cross Site Request Forgery vulnerability found in Phachon mm-wiki v.0.1.2 allows a remote… CVSS 3.1HIGH 8.8
  • TI-2021-16749 mm-wiki v0.2.1 was discovered to contain a Cross-Site Request Forgery (CSRF) which allows… CVSS 3.1MEDIUM 6.5
  • TI-2020-13576 Cross Site Scripting vulnerability found in Phachon mm-wiki v.0.1.2 allows a remote… CVSS 3.1MEDIUM 5.4

Sources

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